52639 + Interview Questions in Secondary School in Chemistry

1.	Define slow and fast changes answer about five lines with examples about 5
Answer» Answer: SLOVE changes: the changes which OCCURS at very SLOW rate are known as slow changes. eg. melting of ice fast changes: the changes which occurs at very fast rate are known as fast changes. eg. burning of camphor. may it HELP u MARK as brainliest

1.

Define slow and fast changes answer about five lines with examples about 5

Answer»

Answer:

SLOVE changes: the changes which OCCURS at very SLOW rate are known as slow changes.

eg. melting of ice

fast changes: the changes which occurs at very fast rate are known as fast changes.

eg. burning of camphor.

may it HELP u

MARK as brainliest

Discussion

2.	Whyin the second reaction the iodide ion is attached to the right hand side carbon
Answer» Answer: answer according to me is a SINCE HI is a big GROUP so it attacks on the less stearic side so option is a and it follows SN2 MECHANISM

2.

Whyin the second reaction the iodide ion is attached to the right hand side carbon

Answer»

Answer:

answer according to me is a SINCE HI is a big GROUP so it attacks on the less stearic side so option is a and it follows SN2 MECHANISM

Discussion

3.	How can you find the number of neutrons in the isotope nitrogen-16?
Answer» Answer: To FIND the number of neutrons in an ISOTOPE, SUBTRACT the number of protons from the atomic MASS of the isotope. The atomic number of the element equals the number of protons. Mark me as Brainliest........

3.

How can you find the number of neutrons in the isotope nitrogen-16?

Answer»

Answer:

To FIND the number of neutrons in an ISOTOPE, SUBTRACT the number of protons from the atomic MASS of the isotope. The atomic number of the element equals the number of protons.

Mark me as Brainliest........

Discussion

4.	Which statement best describes why specific heat capacity is often more useful than heat capacity for scientists when comparing two materials?A). Specific heat capacity is an intensive property and does not depend on sample size.B). Specific heat capacity is an extensive property and does not depend on sample size.C). Specific heat capacity is an intensive property and depends on the sample size.D). Specific heat capacity is an extensive property and depends on the sample size.
Answer» Answer: a is the answer as it never GOING to change no MATTER the SIZE of the MATERIA

4.

Which statement best describes why specific heat capacity is often more useful than heat capacity for scientists when comparing two materials?A). Specific heat capacity is an intensive property and does not depend on sample size.B). Specific heat capacity is an extensive property and does not depend on sample size.C). Specific heat capacity is an intensive property and depends on the sample size.D). Specific heat capacity is an extensive property and depends on the sample size.

Answer»

Answer:

a is the answer as it never GOING to change no MATTER the SIZE of the MATERIA

Discussion

5.	Which color will come when CH3COOHis kept in red litmus paper
Answer» Explanation: RED....... Because it is an ACID.... And BLUE LITMUS PAPER turns into red but red litmus turns into red......

5.

Which color will come when CH3COOHis kept in red litmus paper

Answer»

Explanation:

RED....... Because it is an ACID.... And BLUE LITMUS PAPER turns into red but red litmus turns into red......

Discussion

6.	उदाहरण देते हुए संक्रमण धातुओं के रसायन के निम्नलिखित अभिलक्षणों का कारण बताइए-(i) संक्रमण धातु का निम्नतम ऑक्साइड क्षारकीय है, जबकि उच्चतम ऑक्साइड उभयधर्मी अम्लीय है। (ii) संक्रमण धातु की उच्चतम ऑक्सीकरण अवस्था ऑक्साइडों तथा फ्लुओराइडों में प्रदर्शित होती है।(iii) धातु के ऑक्सऋणायनों में उच्चतम ऑक्सीकरण अवस्था प्रदर्शित होती है।
Answer» EXPLANATION: उदाहरण देते हुए संक्रमण धातुओं के रसायन के निम्नलिखित अभिलक्षणों का कारण बताइए- (i) संक्रमण धातु का निम्नतम ऑक्साइड क्षारकीय है, जबकि उच्चतम ऑक्साइड उभयधर्मी अम्लीय है। (II) संक्रमण धातु की उच्चतम ऑक्सीकरण अवस्था ऑक्साइडों तथा फ्लुओराइडों में प्रदर्शित होती है। (III) धातु के ऑक्सऋणायनों में उच्चतम ऑक्सीकरण अवस्था प्रदर्शित होती है।✓

6.

उदाहरण देते हुए संक्रमण धातुओं के रसायन के निम्नलिखित अभिलक्षणों का कारण बताइए-(i) संक्रमण धातु का निम्नतम ऑक्साइड क्षारकीय है, जबकि उच्चतम ऑक्साइड उभयधर्मी अम्लीय है। (ii) संक्रमण धातु की उच्चतम ऑक्सीकरण अवस्था ऑक्साइडों तथा फ्लुओराइडों में प्रदर्शित होती है।(iii) धातु के ऑक्सऋणायनों में उच्चतम ऑक्सीकरण अवस्था प्रदर्शित होती है।

Answer»

EXPLANATION:

उदाहरण देते हुए संक्रमण धातुओं के रसायन के निम्नलिखित अभिलक्षणों का कारण बताइए-

(i) संक्रमण धातु का निम्नतम ऑक्साइड क्षारकीय है, जबकि उच्चतम ऑक्साइड उभयधर्मी अम्लीय है।

(II) संक्रमण धातु की उच्चतम ऑक्सीकरण अवस्था ऑक्साइडों तथा फ्लुओराइडों में प्रदर्शित होती है।

(III) धातु के ऑक्सऋणायनों में उच्चतम ऑक्सीकरण अवस्था प्रदर्शित होती है।✓

Discussion

7.	निम्नलिखित को बनाने के लिए विभिन्न पदों का उल्लेख कीजिए -(i) क्रोमाइट अयस्क से tex] K_2Cr_2O_7 [/tex] (ii) पाइरोलुसाइट से
Answer» this is about TAX you should WRITE about it

Discussion

8.	आप निम्नलिखित को किस प्रकार से स्पष्ट करेंगे ।-(i) d4 स्पीशीज़ में से C^{r2+} प्रबल अपचायक है जबकि मैंगनीज़ (III) प्रबल ऑक्सीकरक है। (ii) जलीय विलयन में कोबाल्ट (II) स्थायी है परंतु संकुलनकारी अभिकर्मकों की उपस्थिति में यह सरलतापूर्वक ऑक्सीकृत हो जाता है। (iii) आयनों का d1 विन्यास अत्यंत अस्थायी है।
Answer» ANSWER: are you from LUCKNOW

8.

आप निम्नलिखित को किस प्रकार से स्पष्ट करेंगे ।-(i) d4 स्पीशीज़ में से C^{r2+} प्रबल अपचायक है जबकि मैंगनीज़ (III) प्रबल ऑक्सीकरक है। (ii) जलीय विलयन में कोबाल्ट (II) स्थायी है परंतु संकुलनकारी अभिकर्मकों की उपस्थिति में यह सरलतापूर्वक ऑक्सीकृत हो जाता है। (iii) आयनों का d1 विन्यास अत्यंत अस्थायी है।

Answer»

ANSWER:

are you from LUCKNOW

Discussion

9.	प्रथम संक्रमण श्रेणी में कौन सी धातु बहुधा तथा क्यों +1 ऑक्सीकरण अवस्था दर्शाती है?
Answer» ANSWER: are you from DELHI

9.

प्रथम संक्रमण श्रेणी में कौन सी धातु बहुधा तथा क्यों +1 ऑक्सीकरण अवस्था दर्शाती है?

Answer»

ANSWER:

are you from DELHI

Discussion

10.	प्रथम संक्रमण श्रेणी की धातुओं की +2 ऑक्सीकरण अवस्थाओं के स्थायित्व की तुलना कीजिए।
Answer» MAYBE you should WRITE about TAX

10.

प्रथम संक्रमण श्रेणी की धातुओं की +2 ऑक्सीकरण अवस्थाओं के स्थायित्व की तुलना कीजिए।

Answer»

MAYBE you should WRITE about TAX

Discussion

11.	निम्नलिखित के संदर्भ में, लैन्थेनॉयड एवं ऐक्टिनॉयड के रसायन की तुलना कीजिए।(i) इलेक्ट्रॉनिक विन्यास (ii) परमाण्वीय एवं आयनिक आकार(iii) ऑक्सीकरण अवस्था (iv) रासायनिक अभिक्रियाशीलता।
Answer» ANSWER: I can't UNDERSTAND your language Explanation: good night FRIEND

11.

निम्नलिखित के संदर्भ में, लैन्थेनॉयड एवं ऐक्टिनॉयड के रसायन की तुलना कीजिए।(i) इलेक्ट्रॉनिक विन्यास (ii) परमाण्वीय एवं आयनिक आकार(iii) ऑक्सीकरण अवस्था (iv) रासायनिक अभिक्रियाशीलता।

Answer»

ANSWER:

I can't UNDERSTAND your language

Explanation:

good night FRIEND

Discussion

12.	What do you find in the Himachal Pradesh in Jammu Kashmir
Answer» ANSWER: PLEASE CHECK your QUESTION and CORRECT it

12.

What do you find in the Himachal Pradesh in Jammu Kashmir

Answer»

ANSWER:

PLEASE CHECK your QUESTION and CORRECT it

Discussion

13.	La presión de vapor del metanol puro es 159,76 mmHg. Determinar la fracción molar de glicerol (soluto no electrólito y no volátil) necesario para disminuir la presión de vapor a 129,76 mmHg.
Answer» Answer: Let the initial velocity of the body be u m/s; and the constsnt ACCELERATION be a m/s². Then displacemet (distance covered) of the body after t SECOND is given by s = u t + ½ a t² ———————————-(1) The body covers 20 m in 2s and 80 m in 4 s. 20 = u×2 + ½ a 2²; => 20 = 2 u + 2 a u + a = 10 —————————————(2) 80 = u×4 + ½ a 4²; => 80 = 4 u + 8 a; this gives, u + 2 a = 20 ——————————————(3) Solving (2) and (3) for u and a we get u = 0 m/s and a = 10 m/s² ————————(4) To obtain the distance covered in the next 4s we need to find the velocity at the beginning of this interval using, v = u + a t => v = 0 m/s + 1...

13.

La presión de vapor del metanol puro es 159,76 mmHg. Determinar la fracción molar de glicerol (soluto no electrólito y no volátil) necesario para disminuir la presión de vapor a 129,76 mmHg.

Answer»

Answer:

Let the initial velocity of the body be u m/s; and the constsnt ACCELERATION be a m/s². Then displacemet (distance covered) of the body after t SECOND is given by

s = u t + ½ a t² ———————————-(1)

The body covers 20 m in 2s and 80 m in 4 s.

20 = u×2 + ½ a 2²; => 20 = 2 u + 2 a

u + a = 10 —————————————(2)

80 = u×4 + ½ a 4²; => 80 = 4 u + 8 a; this gives,

u + 2 a = 20 ——————————————(3)

Solving (2) and (3) for u and a we get

u = 0 m/s and a = 10 m/s² ————————(4)

To obtain the distance covered in the next 4s we need to find the velocity at the beginning of this interval using,

v = u + a t => v = 0 m/s + 1...

Discussion

14.	Given an example that shows the state of matter can be changed into another state by changing the temperature
Answer» Answer: The temperature of ICE (solid state) can be increased to FORM water (liquid state) and VICE versa. In TURN water (liquid state) can be HEATED (its temperature increased) to form steam (gaseous state) and vice versa.

14.

Given an example that shows the state of matter can be changed into another state by changing the temperature

Answer»

Answer:

The temperature of ICE (solid state) can be increased to FORM water (liquid state) and VICE versa. In TURN water (liquid state) can be HEATED (its temperature increased) to form steam (gaseous state) and vice versa.

Discussion

15.	An almirah is a solid whereas milk is liquid at room temperature.why?
Answer» Answer: ALMIRAH is MADE of IRON and milk is of liquid FORM of substance.

15.

An almirah is a solid whereas milk is liquid at room temperature.why?

Answer»

Answer:

ALMIRAH is MADE of IRON and milk is of liquid FORM of substance.

Discussion

16.	How many nodes in 4s,4p and 4d?
Answer» ANSWER: RADIAL NODE 4s 4-0-1 = 3 4p 4-1-1 = 2 4d 4-2-1 = 1

16.

How many nodes in 4s,4p and 4d?

Answer»

ANSWER:

RADIAL NODE

4s 4-0-1 = 3

4p 4-1-1 = 2

4d 4-2-1 = 1

Discussion

17.	Valency of platinous and stannous
Answer» ANSWER: valency of PT is 4 or 2 and the valency of Sn is 4,2 or-4 Explanation:

17.

Valency of platinous and stannous

Answer»

ANSWER:

valency of PT is 4 or 2 and the valency of Sn is 4,2 or-4

Explanation:

Discussion

18.	0.73g of organic compound on oxidation gave 1.37g of carbon dioxide the percentage of carbon in the given compound is
Answer» Explanation: 0.73g of organic compound on OXIDATION gave 1.37g of CARBON DIOXIDE the PERCENTAGE of carbon in the GIVEN compound is

18.

0.73g of organic compound on oxidation gave 1.37g of carbon dioxide the percentage of carbon in the given compound is

Answer»

Explanation:

0.73g of organic compound on OXIDATION gave 1.37g of CARBON DIOXIDE the PERCENTAGE of carbon in the GIVEN compound is

Discussion

19.	A sample of an unknown substance has a mass of 0.465 kg. If 3,000.0 J of heat is required to heat the substance from 50.0°C to 100.0°C, what is the specific heat of the substance?Use q equals m C subscript p Delta T..A). 0.00775 J/(gi°C)B). 0.0600 J/(gi°C)C). 0.129 J/(gi°C)D). 0.155 J/(gi°C)
Answer» Answer: Which of the following has the smallest heat capacity? 3.0 g PB Which of the following would release the most heat upon cooling from 75°C to 50°C? A A cube of iron (Cp = 0.450 J/g•°C) with a mass of 55.8 g is heated from 25.0°C to 48.5°C. How much heat is required for this process? Round your answer to three significant figures. 590 A sample of tin (Cp = 0.227 J/g•°C) is placed in a freezer. Its temperature decreases from 15.0°C to −10.0°C as it releases 543 J of energy. What is the mass of the sample? Round your answer to three significant figures. 95.7 Describe how you could determine the specific heat of sample of a solid substance. You may assume that the substance does not react with water. In your answer, make sure to include a description of what equipment you would use and how you would interpret the DATA you collected. I would use calorimetric to determine the specific heat and I would measure the mass of a sample Sodium carbonate (Na2CO3) reacts with ACETIC acid (CH3COOH) to form sodium acetate (NaCH3COO), carbon dioxide (CO2), and water (H2O). A chemist carries out this reaction in a bomb calorimeter. The reaction causes the temperature of a bomb calorimeter to decrease by 0.985 K. The calorimeter has a mass of 1.500 KG and a specific heat of 2.52 J/g•K. What is the heat of reaction for this SYSTEM? -3.72 This Reaction is endothermic A sample of hexane (C6H14) has a mass of 0.580 g. The sample is burned in a bomb calorimeter that has a mass of 1.900 kg and a specific heat of 3.21 J/giK. What amount of heat is produced during the combustion of hexane if the temperature of the calorimeter increases by 4.542 K? Not A Which statement DESCRIBES how a basic coffee cup calorimeter works? It uses the mass and specific heat of water along with a thermometer to measure the gain or loss of energy when a substance is added. Which statement defines calorimeter? a device that measures the heat that is gained or lost in a chemical change Which units express heat capacity? J/°C, J/K, cal/°C, cal/K What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C to 70.0°C when 2,520 J of heat is applied? 0.00420 J/(gi°C) A sample of an unknown substance has a mass of 0.465 kg. If 3,000.0 J of heat is required to heat the substance from 50.0°C to 100.0°C, what is the specific heat of the substance? 0.129 J/(gi°C) Which statement defines the heat capacity of a sample? the quantity of heat that is required to raise the sample's temperature by 1°C (or Kelvin) A 75.00-g sample of an unknown metal is heated to 52.00°C. It is then placed in a coffee cup calorimeter filled with water. The calorimeter and the water inside have a combined mass of 225.0 g and an overall specific heat of 2.045 J/(gi°C). The initial temperature of the calorimeter is 7.50°C. If the system reaches a final temperature of 9.08°C when the metal is added, what is the specific heat of the unknown metal? 0.226 J/(gmc024-3.jpg°C) A piece of iron (Cp = 0.450 J/(gi°C)) that has a mass of 21.5 g and an initial temperature of 100.0°C is submerged in X g of water (Cp = 4.184 J/(gi°C)) at 20.0°C. The temperature of the system (iron and water) changes to 21.4°C. What is the value of X? Not A When complete combustion of a 0.260-mol sample of a compound occurs in a bomb calorimeter, the temperature of the calorimeter increases from 20.0°C to 52.0°C. The mass of the calorimeter is 1.50 kg, and its specific heat is 3.410 J/(gi°C). What amount of heat would be produced by burning 1 mol of the compound? D

19.

A sample of an unknown substance has a mass of 0.465 kg. If 3,000.0 J of heat is required to heat the substance from 50.0°C to 100.0°C, what is the specific heat of the substance?Use q equals m C subscript p Delta T..A). 0.00775 J/(gi°C)B). 0.0600 J/(gi°C)C). 0.129 J/(gi°C)D). 0.155 J/(gi°C)

Answer»

Answer:

Which of the following has the smallest heat capacity?

3.0 g PB

Which of the following would release the most heat upon cooling from 75°C to 50°C?

A

A cube of iron (Cp = 0.450 J/g•°C) with a mass of 55.8 g is heated from 25.0°C to 48.5°C. How much heat is required for this process? Round your answer to three significant figures.

590

A sample of tin (Cp = 0.227 J/g•°C) is placed in a freezer. Its temperature decreases from 15.0°C to −10.0°C as it releases 543 J of energy. What is the mass of the sample? Round your answer to three significant figures.

95.7

Describe how you could determine the specific heat of sample of a solid substance. You may assume that the substance does not react with water. In your answer, make sure to include a description of what equipment you would use and how you would interpret the DATA you collected.

I would use calorimetric to determine the specific heat and I would measure the mass of a sample

Sodium carbonate (Na2CO3) reacts with ACETIC acid (CH3COOH) to form sodium acetate (NaCH3COO), carbon dioxide (CO2), and water (H2O). A chemist carries out this reaction in a bomb calorimeter. The reaction causes the temperature of a bomb calorimeter to decrease by 0.985 K. The calorimeter has a mass of 1.500 KG and a specific heat of 2.52 J/g•K. What is the heat of reaction for this SYSTEM?

-3.72

This Reaction is

endothermic

A sample of hexane (C6H14) has a mass of 0.580 g. The sample is burned in a bomb calorimeter that has a mass of 1.900 kg and a specific heat of 3.21 J/giK. What amount of heat is produced during the combustion of hexane if the temperature of the calorimeter increases by 4.542 K?

Not A

Which statement DESCRIBES how a basic coffee cup calorimeter works?

It uses the mass and specific heat of water along with a thermometer to measure the gain or loss of energy when a substance is added.

Which statement defines calorimeter?

a device that measures the heat that is gained or lost in a chemical change

Which units express heat capacity?

J/°C, J/K, cal/°C, cal/K

What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C to 70.0°C when 2,520 J of heat is applied?

0.00420 J/(gi°C)

A sample of an unknown substance has a mass of 0.465 kg. If 3,000.0 J of heat is required to heat the substance from 50.0°C to 100.0°C, what is the specific heat of the substance?

0.129 J/(gi°C)

Which statement defines the heat capacity of a sample?

the quantity of heat that is required to raise the sample's temperature by 1°C (or Kelvin)

A 75.00-g sample of an unknown metal is heated to 52.00°C. It is then placed in a coffee cup calorimeter filled with water. The calorimeter and the water inside have a combined mass of 225.0 g and an overall specific heat of 2.045 J/(gi°C). The initial temperature of the calorimeter is 7.50°C. If the system reaches a final temperature of 9.08°C when the metal is added, what is the specific heat of the unknown metal?

0.226 J/(gmc024-3.jpg°C)

A piece of iron (Cp = 0.450 J/(gi°C)) that has a mass of 21.5 g and an initial temperature of 100.0°C is submerged in X g of water (Cp = 4.184 J/(gi°C)) at 20.0°C. The temperature of the system (iron and water) changes to 21.4°C. What is the value of X?

Not A

When complete combustion of a 0.260-mol sample of a compound occurs in a bomb calorimeter, the temperature of the calorimeter increases from 20.0°C to 52.0°C. The mass of the calorimeter is 1.50 kg, and its specific heat is 3.410 J/(gi°C). What amount of heat would be produced by burning 1 mol of the compound?

D

Discussion

20.	SymbolLatin nameName of element1. Gold2. Silver3. Mercury4. Copper5. Lead6. Iron7. Sodium8. Potassium9. Tin10. Antimony11. TungstenAurumArgentumHydrargyrumCuprumPlumbumFerrumNatriumKaliumStannumStibiumWolfram(German name
Answer» ANSWER: gold-aurum tin-stannum sodium-natrium silver-argentum iron-ferrum lead-plumbum

20.

SymbolLatin nameName of element1. Gold2. Silver3. Mercury4. Copper5. Lead6. Iron7. Sodium8. Potassium9. Tin10. Antimony11. TungstenAurumArgentumHydrargyrumCuprumPlumbumFerrumNatriumKaliumStannumStibiumWolfram(German name

Answer»

ANSWER:

gold-aurum

tin-stannum

sodium-natrium

silver-argentum

iron-ferrum

lead-plumbum

Discussion

21.	Why are there all type of elements in P block
Answer» Answer: P block elements are in which the last ELECTRON enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two ELECTRONS therefore in all there are six GROUPS of p-block elements. HOPE THIS HELPS YOU ✌️

21.

Why are there all type of elements in P block

Answer»

Answer:

P block elements are in which the last ELECTRON enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two ELECTRONS therefore in all there are six GROUPS of p-block elements.

HOPE THIS HELPS YOU ✌️

Discussion

22.	Achievements of Mandeleev's periodic table :
Answer» Answer: Prediction of UNKNOWN elements. Mendelèev left some spaces in his periodic table. Instead of looking at these spaces as defects, he predicted the existence of some elements that were not DISCOVERED at the time. He had predicted their CHEMICAL properties based on elements PRESENT in the same group as well.

22.

Achievements of Mandeleev's periodic table :

Answer»

Answer:

Prediction of UNKNOWN elements.

Mendelèev left some spaces in his periodic table. Instead of looking at these spaces as defects, he predicted the existence of some elements that were not DISCOVERED at the time. He had predicted their CHEMICAL properties based on elements PRESENT in the same group as well.

Discussion

23.	निम्नलिखित में कौन से आयन जलीय विलयन में रंगीन होंगे? प्रत्येक के लिए कारण बताइए।
Answer» ANSWER: *HEYA* *mate* वे आयन रंगीन होते हैं जिनमें एक या अधिक अयुग्मित इलेक्ट्रॉन होते हैं। TI3+, V3+, MN2+, Fe3+ तथा Co2+ रंगीन होते हैं। Cu+ तथा Sc3+ रंगहीन होते हैं। *plzz* *Mark* as *brainlist* ✌✌

23.

निम्नलिखित में कौन से आयन जलीय विलयन में रंगीन होंगे? प्रत्येक के लिए कारण बताइए।

Answer»

ANSWER:

HEYA mate

वे आयन रंगीन होते हैं जिनमें एक या अधिक अयुग्मित इलेक्ट्रॉन होते हैं। TI3+, V3+, MN2+, Fe3+ तथा Co2+ रंगीन होते हैं। Cu+ तथा Sc3+ रंगहीन होते हैं।

plzz Mark as brainlist ✌✌

Discussion

24.	पोटैशियम डाइक्रोमेट को ऑक्सीकरण क्रिया का उल्लेख कीजिए तथा निम्नलिखित के साथ आयनिक समीकरण लिखिए-(i) आयोडाइड आयन (ii) आयरन (II) विलयन (iii) H_2S
Answer» ANSWER: पोटैशियम डाइक्रोमेट को ऑक्सीकरण क्रिया का उल्लेख कीजिए तथा निम्नलिखित के साथ आयनिक समीकरण लिखिए- (i) आयोडाइड ✓✓ (II) आयरन (II) विलयन (III) H_2S

24.

पोटैशियम डाइक्रोमेट को ऑक्सीकरण क्रिया का उल्लेख कीजिए तथा निम्नलिखित के साथ आयनिक समीकरण लिखिए-(i) आयोडाइड आयन (ii) आयरन (II) विलयन (iii) H_2S

Answer»

ANSWER:

पोटैशियम डाइक्रोमेट को ऑक्सीकरण क्रिया का उल्लेख कीजिए तथा निम्नलिखित के साथ आयनिक समीकरण लिखिए-

(i) आयोडाइड ✓✓

(II) आयरन

(II) विलयन

(III) H_2S

Discussion

25.	अंतराकाशी यौगिक क्या हैं? इस प्रकार के यौगिक संक्रमण धातुओं के लिए भली प्रकार से ज्ञात क्यों हैं?
Answer» EXPLANATION: एक अंतरालीय यौगिक, या अंतरालीय मिश्रधातु, एक यौगिक है जो तब बनता है जब एक छोटे पर्याप्त त्रिज्या के साथ एक परमाणु एक धातु की जाली में अंतरालीय "छेद" में बैठता है। छोटे परमाणुओं के उदाहरण हाइड्रोजन, बोरान, कार्बन और नाइट्रोजन हैं। यौगिक औद्योगिक रूप से महत्वपूर्ण हैं।

25.

अंतराकाशी यौगिक क्या हैं? इस प्रकार के यौगिक संक्रमण धातुओं के लिए भली प्रकार से ज्ञात क्यों हैं?

Answer»

EXPLANATION:

एक अंतरालीय यौगिक, या अंतरालीय मिश्रधातु, एक यौगिक है जो तब बनता है जब एक छोटे पर्याप्त त्रिज्या के साथ एक परमाणु एक धातु की जाली में अंतरालीय "छेद" में बैठता है। छोटे परमाणुओं के उदाहरण हाइड्रोजन, बोरान, कार्बन और नाइट्रोजन हैं। यौगिक औद्योगिक रूप से महत्वपूर्ण हैं।

Discussion

26.	पोटैशियम परमैंगनेट को बनाने की विधि का वर्णन कीजिए। अम्लीय पोटैशियम परमैंगनेट किस प्रकार-(i) आयरन (II) आयन (ii) तथा (iii) ऑक्सैलिक अम्ल से अभिक्रिया करता है? अभिक्रियाओं के लिए आयनिक समीकरण लिखिए।
Answer» ANSWER: पोटैशियम परमैंगनेट को बनाने की विधि का वर्णन कीजिए। अम्लीय पोटैशियम परमैंगनेट किस प्रकार- (i) आयरन✓ (II) आयन (ii) $SO_2$ तथा (III) ऑक्सैलिक अम्ल से अभिक्रिया करता है? अभिक्रियाओं के लिए आयनिक समीकरण लिखिए।

26.

पोटैशियम परमैंगनेट को बनाने की विधि का वर्णन कीजिए। अम्लीय पोटैशियम परमैंगनेट किस प्रकार-(i) आयरन (II) आयन (ii) तथा (iii) ऑक्सैलिक अम्ल से अभिक्रिया करता है? अभिक्रियाओं के लिए आयनिक समीकरण लिखिए।

Answer»

ANSWER:

पोटैशियम परमैंगनेट को बनाने की विधि का वर्णन कीजिए। अम्लीय पोटैशियम परमैंगनेट किस प्रकार-

(i) आयरन✓

(II) आयन

(ii) $SO_2$ तथा

(III) ऑक्सैलिक अम्ल से अभिक्रिया करता है? अभिक्रियाओं के लिए आयनिक समीकरण लिखिए।

Discussion

27.	संक्रमण धातुओं की ऑक्सीकरण अवस्थाओं में परिवर्तनशीलता असंक्रमण धातुओं में ऑक्सीकरण अवस्थाओं में परिवर्तनशीलता से किस प्रकार भिन्न है? उदाहरण देकर स्पष्ट कीजिए।
Answer» ANSWER: what are TELLING can EXPLAIN in DETAIL

27.

संक्रमण धातुओं की ऑक्सीकरण अवस्थाओं में परिवर्तनशीलता असंक्रमण धातुओं में ऑक्सीकरण अवस्थाओं में परिवर्तनशीलता से किस प्रकार भिन्न है? उदाहरण देकर स्पष्ट कीजिए।

Answer»

ANSWER:

what are TELLING can EXPLAIN in DETAIL

Discussion

28.	तथा निकाय के संदर्भ में कुछ धातुओं के EV के मान नीचे दिए गए हैं। Cr2+/Cr -0.9V Cr3/Cr2+ -0.4 V[tex] \dfrac{Mn^{2+}}{Mn} -1.2V \dfrac{Mn^{3+}}{Mn^{2+}} +1.5 V\dfrac{Fe^{2+}}{Fe} -0.4V \dfrac{Fe^{3+}}{Fe^{2+}} +0.8 Vउपरोक्त आँकड़ों के आधार पर निम्नलिखित पर टिप्पणी कीजिए।(i) अम्लीय माध्यम में Cr^{3+} या Mn^{3+} की तुलना में Fe^{3+} का स्थायित्व।(ii) समान प्रक्रिया के लिए क्रोमियम अथवा मैंगनीज़ धातुओं की तुलना में आयरन के ऑक्सीकरण में सुगमता।
Answer» ANSWER: सांख्यिकी, [गणित] की वह शाखा है जिसमें आँकड़ों का संग्रहण, प्रदर्शन, वर्गीकरण और उसके गुणों का आकलन का अध्ययन किया जाता है। सांख्यिकी एक गणितीय विज्ञान है जिसमें किसी वस्तु/अवयव/तंत्र/समुदाय से सम्बन्धित आकड़ों का संग्रह, विश्लेषण, व्याख्या या स्पष्टीकरण और प्रस्तुति की जाती है। यह विभिन्न क्षेत्रों में लागू है - अकादमिक अनुशासन (ACADEMIC DISCIPLINES), इस से प्राकृतिक विज्ञान, सामाजिक विज्ञान, मानविकी, सरकार और व्यापार आदि।

28.

तथा निकाय के संदर्भ में कुछ धातुओं के EV के मान नीचे दिए गए हैं। Cr2+/Cr -0.9V Cr3/Cr2+ -0.4 V[tex] \dfrac{Mn^{2+}}{Mn} -1.2V \dfrac{Mn^{3+}}{Mn^{2+}} +1.5 V\dfrac{Fe^{2+}}{Fe} -0.4V \dfrac{Fe^{3+}}{Fe^{2+}} +0.8 Vउपरोक्त आँकड़ों के आधार पर निम्नलिखित पर टिप्पणी कीजिए।(i) अम्लीय माध्यम में Cr^{3+} या Mn^{3+} की तुलना में Fe^{3+} का स्थायित्व।(ii) समान प्रक्रिया के लिए क्रोमियम अथवा मैंगनीज़ धातुओं की तुलना में आयरन के ऑक्सीकरण में सुगमता।

Answer»

ANSWER:

सांख्यिकी, [गणित] की वह शाखा है जिसमें आँकड़ों का संग्रहण, प्रदर्शन, वर्गीकरण और उसके गुणों का आकलन का अध्ययन किया जाता है।

सांख्यिकी एक गणितीय विज्ञान है जिसमें किसी वस्तु/अवयव/तंत्र/समुदाय से सम्बन्धित आकड़ों का संग्रह, विश्लेषण, व्याख्या या स्पष्टीकरण और प्रस्तुति की जाती है। यह विभिन्न क्षेत्रों में लागू है - अकादमिक अनुशासन (ACADEMIC DISCIPLINES), इस से प्राकृतिक विज्ञान, सामाजिक विज्ञान, मानविकी, सरकार और व्यापार आदि।

Discussion

29.	आयरनक्रोमाइट अयस्क से पोटैशियम डाइक्रोमेट बनाने की विधि का वर्णन कीजिए। पोटैशियम डाइक्रोमेट विलयन पर pH बढ़ाने से क्या प्रभाव पड़ेगा?
Answer» Answer: *HEYA* *mate* *इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।* इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है। इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।2MnO2 + 4KOH + O2 → 2K2MnO4 + 2H2O इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।2MnO2 + 4KOH + O2 → 2K2MnO4 + 2H2Oपौटेशियम मैग्नेट के मैग्नेट आयन का अम्लीय माध्यम में असमानुपातन हो जाता है जिससे पोटेशियम परमैग्नेट बनता है। इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।2MnO2 + 4KOH + O2 → 2K2MnO4 + 2H2Oपौटेशियम मैग्नेट के मैग्नेट आयन का अम्लीय माध्यम में असमानुपातन हो जाता है जिससे पोटेशियम परमैग्नेट बनता है।3MnO42- + 4H+ → 2MnO4– + MnO2 + 2H2O *plzz* *MARK* as *BRAINLIST* ✌✌

29.

आयरनक्रोमाइट अयस्क से पोटैशियम डाइक्रोमेट बनाने की विधि का वर्णन कीजिए। पोटैशियम डाइक्रोमेट विलयन पर pH बढ़ाने से क्या प्रभाव पड़ेगा?

Answer»

Answer:

HEYA mate

इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।

इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।

इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।2MnO2 + 4KOH + O2 → 2K2MnO4 + 2H2O

इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।2MnO2 + 4KOH + O2 → 2K2MnO4 + 2H2Oपौटेशियम मैग्नेट के मैग्नेट आयन का अम्लीय माध्यम में असमानुपातन हो जाता है जिससे पोटेशियम परमैग्नेट बनता है।

इसे क्रोमाइट (FeO.Cr2O7 या FeCr2O4) से निम्न पदों में बनाया जाता है।क्रोमाइट को सोडियम कार्बोनेट तथा वायु के साथ संगलित करते है जिससे सोडियम क्रोमेट बनता है।2MnO2 + 4KOH + O2 → 2K2MnO4 + 2H2Oपौटेशियम मैग्नेट के मैग्नेट आयन का अम्लीय माध्यम में असमानुपातन हो जाता है जिससे पोटेशियम परमैग्नेट बनता है।3MnO42- + 4H+ → 2MnO4– + MnO2 + 2H2O

plzz MARK as BRAINLIST ✌✌

Discussion

30.	Two solid compounds X ,Y dissociate at a very temperature as followsX= A +2B kp=9×10^-3 atm3Y=2B+C. Kp=4.5×10^-3 atm3Total pressure exerted by X,Y is??
Answer» Answer: A PARTICLE has a displacement of 40M along OX in the first 5s and 30m perpendicular to OX in the next 5s. The magnitude of AVERAGE velocity of the particle during the time internal of 10S is a) 6 ms–1 b) 7 ms–1 c) 8 ms–1 d) 5 ms–1 [

30.

Two solid compounds X ,Y dissociate at a very temperature as followsX= A +2B kp=9×10^-3 atm3Y=2B+C. Kp=4.5×10^-3 atm3Total pressure exerted by X,Y is??

Answer»

Answer:

A PARTICLE has a displacement of 40M along OX in the first 5s and 30m perpendicular to OX in

the next 5s. The magnitude of AVERAGE velocity of the particle during the time internal of 10S is

a) 6 ms–1 b) 7 ms–1 c) 8 ms–1 d) 5 ms–1 [

Discussion

31.	Iupac name of be(ch3coch2coc6h5) 2
Answer» ANSWER: homework Kahan SE MILA Hai

31.

Iupac name of be(ch3coch2coc6h5) 2

Answer»

ANSWER:

homework Kahan SE MILA Hai

Discussion

32.	Atomic no 55 belongs to which block of periodic table
Answer» Caesium Answer: Atomic number - 55 Relative atomic mass - 132.9(12C = 12 exactly) Chemical NAME - Caesium (Cesium) Symbol - Cs Valency - +1 It LIES in periods (row) 6 and s - block (means column-1) extra important information : Cesium is an Alkali metal. hope it helped you please mark me a brainliest and thanks

32.

Atomic no 55 belongs to which block of periodic table

Answer»

Caesium

Answer:

Atomic number - 55

Relative atomic mass - 132.9(12C = 12 exactly)

Chemical NAME - Caesium (Cesium)

Symbol - Cs

Valency - +1

It LIES in periods (row) 6 and s - block (means column-1)

extra important information :

Cesium is an Alkali metal.

hope it helped you please mark me a brainliest and thanks

Discussion

33.	I want some uses of koroseal fibre
Answer» Answer: the use is that we can make FIRE with it and MANY more. HOPE it helps

33.

I want some uses of koroseal fibre

Answer»

Answer:

the use is that we can make FIRE with it and MANY more.

HOPE it helps

Discussion

34.	What is the physical state of matter at (a) 250°C (b)100°C
Answer» ANSWER: which matter Explanation:

34.

What is the physical state of matter at (a) 250°C (b)100°C

Answer»

ANSWER:

which matter

Explanation:

Discussion

35.	Which statement defines calorimeter?A). a device that measures the heat that is gained or lost in a chemical changeB). a device that measures the potential energy of an elementC). a device that is used to measure heat capacityD). a device that is used to measure temperature
Answer» Answer:(C) EXPLANATION: To know the HEAT capacity this DEVICE is MADE

35.

Which statement defines calorimeter?A). a device that measures the heat that is gained or lost in a chemical changeB). a device that measures the potential energy of an elementC). a device that is used to measure heat capacityD). a device that is used to measure temperature

Answer»

Answer:(C)

EXPLANATION: To know the HEAT capacity this DEVICE is MADE

Discussion

36.	What are observables? Give the operators and operation for the following observables: (5)(i) Position (x)(ii) Momentum (P) (iii) Potential Energy U(x) (iv) Total Energy (E)
Answer» Answer: A uniform METRE SCALE has two weights of 10 GF and 8 gf suspended at the 10 cm and 80 cm marks RESPECTIVELY. If the metre scale itself weights 50 gf, find where must the weight be, so that the metre scale stays balanced? December 30, 2019Archa Tawari SHARE ANSWER Let the meter scales is balanced at X cm mark on the scale. At the balancing condition, Anticlock wise moment must be equal to CLOCK wise moment. Clockwise moment, about the balancing point is = moment by 80 gf =80gf×(80−X)cm =6400gfcm−80Xgfcm.....(1) Anticlock wise moment about the balancing point is = moment by 10 gf + moment by 50 gf =10gf×(X−10)+50gf×(X−50) =10Xgfc,−100gfcm+50Xgfcm−2500gfcm.....(2) At the balancing condition, Clock wise at equilibrium = Anti clock wise moments. 6400−80X=100X−100+50X−2500 6400+2600=140X⇒140X=8000 ⇒X=1408000=64.28 Scale is balanced at 64.28 cm from the beginning.

36.

What are observables? Give the operators and operation for the following observables: (5)(i) Position (x)(ii) Momentum (P) (iii) Potential Energy U(x) (iv) Total Energy (E)

Answer»

Answer:

A uniform METRE SCALE has two weights of 10 GF and 8 gf suspended at the 10 cm and 80 cm marks RESPECTIVELY. If the metre scale itself weights 50 gf, find where must the weight be, so that the metre scale stays balanced?

December 30, 2019Archa Tawari

SHARE

ANSWER

Let the meter scales is balanced at X cm mark on the scale.

At the balancing condition, Anticlock wise moment must be equal to CLOCK wise moment.

Clockwise moment, about the balancing point is

= moment by 80 gf

=80gf×(80−X)cm

=6400gfcm−80Xgfcm.....(1)

Anticlock wise moment about the balancing point is

= moment by 10 gf + moment by 50 gf

=10gf×(X−10)+50gf×(X−50)

=10Xgfc,−100gfcm+50Xgfcm−2500gfcm.....(2)

At the balancing condition, Clock wise at equilibrium = Anti clock wise moments.

6400−80X=100X−100+50X−2500

6400+2600=140X⇒140X=8000

⇒X=1408000=64.28

Scale is balanced at 64.28 cm from the beginning.

Discussion

37.	What are observables? Give the operators and operation for the following observables:(i) Position (x)(ii) Momentum (P) (iii) Potential Energy U(x) (iv) Total Energy (E)
Answer» Behavegshrurhdftxbfjdvrgxhrurhffjd dvdgdv EVE R eve DVD dhehrhusbr DI

Discussion

38.	Which statement defines the heat capacity of a sample?
Answer» ANSWER: *ENERGY requires to raise temperature of a SUBSTANCE upto 1°C.* hope it helpd....

38.

Which statement defines the heat capacity of a sample?

Answer»

ANSWER:

ENERGY requires to raise temperature of a SUBSTANCE upto 1°C.

hope it helpd....

Discussion

39.	Difference between 2Cl and Cl2
Answer» Answer: Cl2 is a diatomic molecule, whereas 2Cl means 2 units of a negatively charged chlorine anion in a CHEMICAL equation. The 2 in front of 2Cl just means that there are 2 single chlorine IONS. The 2 written in Cl2 means that there are TWO chlorine ATOMS covalently bonded to form a chlorine molecule.

39.

Difference between 2Cl and Cl2

Answer»

Answer:

Cl2 is a diatomic molecule, whereas 2Cl means 2 units of a negatively charged chlorine anion in a CHEMICAL equation. The 2 in front of 2Cl just means that there are 2 single chlorine IONS. The 2 written in Cl2 means that there are TWO chlorine ATOMS covalently bonded to form a chlorine molecule.

Discussion

40.	What is einstein ' s law of coulombs?
Answer» ANSWER: Coulomb's law states that the electrical force between TWO charged objects is directly proportional to the product of the QUANTITY of charge on the objects and INVERSELY proportional to the SQUARE of the separation distance between the two objects. Hope this helps you.

40.

What is einstein ' s law of coulombs?

Answer»

ANSWER:

Coulomb's law states that the electrical force between TWO charged objects is directly proportional to the product of the QUANTITY of charge on the objects and INVERSELY proportional to the SQUARE of the separation distance between the two objects.

Hope this helps you.

Discussion

41.	How is a chemistry helpful in improving the health of human being
Answer» Answer: Chemistry is very helpful in IMPROVING the health of human BEINGS by providing Antibiotics, Pain killers, Pencilin, Tetracycline ETC. It has provided us with Vitamins, Enzymes, Minerals and ANESTHESIA . I *thing* *this* *answers* *will* *helpful* *for* *you*. Hope it will helpful for you

41.

How is a chemistry helpful in improving the health of human being

Answer»

Answer:

Chemistry is very helpful in IMPROVING the health of human BEINGS by providing Antibiotics, Pain killers, Pencilin, Tetracycline ETC. It has provided us with Vitamins, Enzymes, Minerals and ANESTHESIA .

I thing this answers will helpful for you.

Hope it will helpful for you

Discussion

42.	what is the molar mass of non volatile organic compound of the addition of 1.0 g of it to 50.0 g of benzene raises the boiling point of benzene by 0.30°C? (kb for benzene is 2.55°C per 1000 g of benzene)
Answer» Answer:RAOULT's law states that the vapor PRESSURE of a SOLVENT above a solution is equal to the vapor pressure of the PURE solvent at the same temperature scaled by the mole fraction of the solvent PRESENT: Psolution=χsolventPosolvent(1) Explanation:

42.

what is the molar mass of non volatile organic compound of the addition of 1.0 g of it to 50.0 g of benzene raises the boiling point of benzene by 0.30°C? (kb for benzene is 2.55°C per 1000 g of benzene)

Answer»

Answer:RAOULT's law states that the vapor PRESSURE of a SOLVENT above a solution is equal to the vapor pressure of the PURE solvent at the same temperature scaled by the mole fraction of the solvent PRESENT:

Psolution=χsolventPosolvent(1)

Explanation:

Discussion

43.	How will you indicate the following effects in a chemical equation?(a) Evolution of a gas(b) Formation of a precipitate
Answer» ANSWER: EVOLUTION of GAS.......

43.

How will you indicate the following effects in a chemical equation?(a) Evolution of a gas(b) Formation of a precipitate

Answer»

ANSWER:

EVOLUTION of GAS.......

Discussion

44.	लैन्थेनॉयडों द्वारा कौन-कौन सी ऑक्सीकरण अवस्थाएं प्रदर्शित की जाती हैं?
Answer» ANSWER: छह बजे तक नहीं रुको में श्रीमान

44.

लैन्थेनॉयडों द्वारा कौन-कौन सी ऑक्सीकरण अवस्थाएं प्रदर्शित की जाती हैं?

Answer»

ANSWER:

छह बजे तक नहीं रुको में श्रीमान

Discussion

45.	संक्षेप में स्पष्ट कीजिए कि प्रथम संक्रमण श्रेणी के प्रथम अर्धभाग में बढ़ते हुए परमाणु क्रमांक के साथ +2 ऑक्सीकरण अवस्था कैसे अधिक स्थायी होती जाती है?
Answer» Answer: I can't understand your language Explanation: friends GOOD good NIGHT

45.

संक्षेप में स्पष्ट कीजिए कि प्रथम संक्रमण श्रेणी के प्रथम अर्धभाग में बढ़ते हुए परमाणु क्रमांक के साथ +2 ऑक्सीकरण अवस्था कैसे अधिक स्थायी होती जाती है?

Answer»

Answer:

I can't understand your language

Explanation:

friends GOOD good NIGHT

Discussion

46.	ऑक्सीकरण अवस्था में ऑक्सीकृत होने के संदर्भ में Mn2+ के यौगिक Fe2+ के यौगिकों की तुलना में अधिक स्थायी क्यों हैं?tex]
Answer» ANSWER: can't UNDERSTAND your LANGUAGE GOOD night FRIENDS Explanation: good night friends

46.

ऑक्सीकरण अवस्था में ऑक्सीकृत होने के संदर्भ में Mn2+ के यौगिक Fe2+ के यौगिकों की तुलना में अधिक स्थायी क्यों हैं?tex]

Answer»

ANSWER:

can't UNDERSTAND your LANGUAGE GOOD night FRIENDS

Explanation:

good night friends

Discussion

47.	स्पष्ट कीजिए कि Cu^{+} आयन जलीय विलयन में स्थायी नहीं है, क्यों? समझाइए।
Answer» ANSWER: SORRY I don't KNOW the answer

47.

स्पष्ट कीजिए कि Cu^{+} आयन जलीय विलयन में स्थायी नहीं है, क्यों? समझाइए।

Answer»

ANSWER:

SORRY I don't KNOW the answer

Discussion

48.	लैन्थेनॉयड आकुंचन की तुलना में एक तत्व से दूसरे तत्व के बीच ऐक्टिनॉयड आकुंचन अधिक होता है। क्यों?
Answer» ANSWER: दूसरे शब्दों में, इलेक्ट्रॉनों की श्रेणी में एक तत्व से दूसरे तत्व की ओर जाने पर दुर्बल परिरक्षण प्रभाव परिलक्षित होता है। अतः ऐक्टिनाइड आकुंचन (संकुचन) अधिक होता है

48.

लैन्थेनॉयड आकुंचन की तुलना में एक तत्व से दूसरे तत्व के बीच ऐक्टिनॉयड आकुंचन अधिक होता है। क्यों?

Answer»

ANSWER:

दूसरे शब्दों में, इलेक्ट्रॉनों की श्रेणी में एक तत्व से दूसरे तत्व की ओर जाने पर दुर्बल परिरक्षण प्रभाव परिलक्षित होता है। अतः ऐक्टिनाइड आकुंचन (संकुचन) अधिक होता है

Discussion

49.	संक्रमण तत्वों की मूल अवस्था में नीचे दिए गए d इलेक्ट्रॉनिक विन्यासों में कौन-सी ऑक्सीकरण अवस्था स्थायी होगी? 3d3,3d5, 3d8 तथा 3d4?
Answer» ANSWER: hsbeiddwnis Explanation: bsjzkhshdf

49.

संक्रमण तत्वों की मूल अवस्था में नीचे दिए गए d इलेक्ट्रॉनिक विन्यासों में कौन-सी ऑक्सीकरण अवस्था स्थायी होगी? 3d3,3d5, 3d8 तथा 3d4?

Answer»

ANSWER:

hsbeiddwnis

Explanation:

bsjzkhshdf

Discussion

50.	निम्नलिखित के इलेक्ट्रॉनिक विन्यास लिखिए- [tex](i) Cr^{3+} (iii) Cu^{+} (v) Co^{2+} (vii) Mn^{2+}(ii) Pm^{3+} (iv) Ce^{4+} (vi) Lu^{2+} (viii) Th^{4+}[/tex]
Answer» ANSWER: can't UNDERSTAND LANGUAGE

50.

निम्नलिखित के इलेक्ट्रॉनिक विन्यास लिखिए- [tex](i) Cr^{3+} (iii) Cu^{+} (v) Co^{2+} (vii) Mn^{2+}(ii) Pm^{3+} (iv) Ce^{4+} (vi) Lu^{2+} (viii) Th^{4+}[/tex]

Answer»

ANSWER:

can't UNDERSTAND LANGUAGE

Discussion

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