52639 + Interview Questions in Secondary School in Chemistry

1.	SI unit of mass and weight
Answer» Answer: EXPLANATION: SI UNIT of mass is kg And SI unit of WEIGHT is NEWTON

1.

SI unit of mass and weight

Answer»

Answer:

EXPLANATION:

SI UNIT of mass is kg

And SI unit of WEIGHT is NEWTON

Discussion

2.	Answer it plz fastly
Answer» ANSWER: Explanation: Nitrogen GAS is ADDED to prevent rancidity And some antioxidants are ALSO added to prevent rancidity

2.

Answer it plz fastly

Answer»

ANSWER:

Explanation:

Nitrogen GAS is ADDED to prevent rancidity

And some antioxidants are ALSO added to prevent rancidity

Discussion

3.	Write the equations for the following reactions in the ionic form and balance the ionice(1) Magnesium is treated with dilute sulphuric acid.(i) Stannous chloride solution is added into mercuric chloride solution.(iii) H2S gas is passed into copper (II) sulphate solution.
Answer» Answer: 3) CuSo4+H2=H2So4+Cu

3.

Write the equations for the following reactions in the ionic form and balance the ionice(1) Magnesium is treated with dilute sulphuric acid.(i) Stannous chloride solution is added into mercuric chloride solution.(iii) H2S gas is passed into copper (II) sulphate solution.

Answer»

Answer:

3) CuSo4+H2=H2So4+Cu

Discussion

4.	Identify the type of reaction
Answer» ANSWER: o3 4Al+3o2 C6H12O6 + O2 2NO

4.

Identify the type of reaction

Answer»

ANSWER:

o3

4Al+3o2

C6H12O6 + O2

2NO

Discussion

5.	When N2+ is formed from N2 the bond order [ ]a) Increases b) Decreasesc) Remains constant d) Increases then decreases
Answer» ANSWER: EXPLANATION:(d)

5.

When N2+ is formed from N2 the bond order [ ]a) Increases b) Decreasesc) Remains constant d) Increases then decreases

Answer»

ANSWER:

EXPLANATION:(d)

Discussion

6.	Answer my all questions
Answer» ANSWER: Explanation:1-a 2-d

6.

Answer my all questions

Answer»

ANSWER:

Explanation:1-a

2-d

Discussion

7.	9. संघनन क्या है? गैस का संघनन कैसे किया जाता है?10. वाष्पन और क्वथन में अंतर स्पष्ट करें।
Answer» 1. संघनन गैस से द्रव बनने की परिघटना को संघनन कहते हैं। यह वाष्पन की उल्टी है। प्रायः जल-चक्र के सन्दर्भ में ही इसका प्रयोग होता है। 2. वाष्पन 1 यह एक स्वतः होने वाली प्रक्रियाहै जो सभी तापो पे होती रहती है \| 2 यह द्रव के सिर्फ ऊपरी सतह पर ही होती है द्रव के भागो पे नहीं \| 3 इसमें ठंडक उत्पन होती है \| क्वथन 1 यह एक निश्चित ताप पर ही होता है ,जिसे द्रव का क्वथनांक कहते है \| 2 यह सम्पूर्ण द्रव में ही होता है ,जिसमे द्रव के भीतर भागो से बुलबुले निकलने लगता है 3 इसमें ठंडक उत्पन नहीं होता है \|

7.

9. संघनन क्या है? गैस का संघनन कैसे किया जाता है?10. वाष्पन और क्वथन में अंतर स्पष्ट करें।

Answer»

1. संघनन गैस से द्रव बनने की परिघटना को संघनन कहते हैं। यह वाष्पन की उल्टी है। प्रायः जल-चक्र के

सन्दर्भ में ही इसका प्रयोग होता है।

2.

वाष्पन

1 यह एक स्वतः होने वाली प्रक्रियाहै जो सभी तापो पे होती रहती है |

2 यह द्रव के सिर्फ ऊपरी सतह पर ही होती है द्रव के भागो पे नहीं |

3 इसमें ठंडक उत्पन होती है |

क्वथन

1 यह एक निश्चित ताप पर ही होता है ,जिसे द्रव का क्वथनांक कहते है |

2 यह सम्पूर्ण द्रव में ही होता है ,जिसमे द्रव के भीतर भागो से बुलबुले निकलने लगता है

3 इसमें ठंडक उत्पन नहीं होता है |

Discussion

8.	Please help me guys.
Answer» X= flourine Y=sulphur Z= potassium SF6 COVALENT bond SK2 Ionic bond KF Ionic bond I hope this HELPS ( ╹▽╹ )

8.

Please help me guys.

Answer»

X= flourine

Y=sulphur

Z= potassium

SF6 COVALENT bond

SK2 Ionic bond

KF Ionic bond

I hope this HELPS ( ╹▽╹ )

Discussion

9.	Cement is made hard by:
Answer» Answer: Explanation: Cements harden because of hydration, chemical reacti ons that OCCUR independently of the mixture's WATER content, they can harden even underwater or when CONSTANTLY exposed to wet weather. Hope it HELPS you.

9.

Cement is made hard by:

Answer»

Answer:

Explanation:

Cements harden because of hydration, chemical reacti ons that OCCUR independently of the mixture's WATER content, they can harden even underwater or when CONSTANTLY exposed to wet weather.

Hope it HELPS you.

Discussion

10.	How to separate the mixture of h2 and o2
Answer» ANSWER: *process* of *electrolysis promotes* *the* *separation* of H2 and HYDROGEN and oxygen are collected in a apparatus separately. . . . . follow MEH** ♥️

10.

How to separate the mixture of h2 and o2

Answer»

ANSWER:

process of electrolysis promotes the separation of H2 and HYDROGEN and oxygen are collected in a apparatus separately.

.

follow MEH ♥️

Discussion

11.	The following table shows variation ofnatomic size of the element of second period
Answer» ANSWER: I don't KNOW?.............................

11.

The following table shows variation ofnatomic size of the element of second period

Answer»

ANSWER:

I don't KNOW?.............................

Discussion

12.	Please help me with chemistry question.
Answer» ANSWER: WHAT IS THE QUESTION MATE

12.

Please help me with chemistry question.

Answer»

ANSWER:

WHAT IS THE QUESTION MATE

Discussion

13.	plz give me a correct answer is an example of diffusion (1) a helium filled balloon rising in air?(2) a hydrogen filled balloon deflating, due to gas passing through tje skin.(3) the smell of perfume from a person standing on the other side of a room .
Answer» ANSWER: option 2 is the correct answer Explanation: ok BRO bye

13.

plz give me a correct answer is an example of diffusion (1) a helium filled balloon rising in air?(2) a hydrogen filled balloon deflating, due to gas passing through tje skin.(3) the smell of perfume from a person standing on the other side of a room .

Answer»

ANSWER:

option 2 is the correct answer

Explanation:

ok BRO bye

Discussion

14.	What is the structure of copper when formed of rolled?1) fibrous2) granular3) nodular4) none of the above explain with structure
Answer» Answer: i DONT know BHAI KYA kare answer ka

14.

What is the structure of copper when formed of rolled?1) fibrous2) granular3) nodular4) none of the above explain with structure

Answer»

Answer:

i DONT know BHAI KYA kare answer ka

Discussion

15.	:Select the ONE correct answer from the given options
Answer» ANSWER: UR question is incomplete dear...U can repost it

15.

:Select the ONE correct answer from the given options

Answer»

ANSWER:

UR question is incomplete dear...U can repost it

Discussion

16.	An element has an atomic number 18 to which period and block does it belong
Answer» Answer: ARGON is ELEMENT that has an atomic NUMBER 18.

16.

An element has an atomic number 18 to which period and block does it belong

Answer»

Answer:

ARGON is ELEMENT that has an atomic NUMBER 18.

Discussion

17.	Compare the following elements as per the characteristics given in the brackets.a)lithium and nitrogen (atomic radii)b)potassium and chlorine (electro negativity)c)magnesium and calcium(valency)
Answer» ANSWER: lithium has great ATOMIC SIZE then nitrogen cl has more ELECTRONEGATIVE it's halogen ca has valency 2 and mg has valency 2

17.

Compare the following elements as per the characteristics given in the brackets.a)lithium and nitrogen (atomic radii)b)potassium and chlorine (electro negativity)c)magnesium and calcium(valency)

Answer»

ANSWER:

lithium has great ATOMIC SIZE then nitrogen

cl has more ELECTRONEGATIVE it's halogen

ca has valency 2 and mg has valency 2

Discussion

18.	Plz give me a correct answer is an example of diffusion a helium filled balloon rising in air
Answer» ANSWER: EXPLANATION:The quantity of HELIUM GAS in the ballon is more than that of PRESENT in air So, to balance the quantity of helium in air and ballon,the helium gas is diffused by air. Thatswhy helium filled balloon collapse after sometime

18.

Plz give me a correct answer is an example of diffusion a helium filled balloon rising in air

Answer»

ANSWER:

EXPLANATION:The quantity of HELIUM GAS in the ballon is more than that of PRESENT in air

So, to balance the quantity of helium in air and ballon,the helium gas is diffused by air.

Thatswhy helium filled balloon collapse after sometime

Discussion

19.	29. When electricity is passed through an aqueous solution of a substance X, sodium hydroxide solution, chlorine gas and hydrogen gas are formed,(a) Write name and chemical formula of substance 'X'.(b) Mention the name of this process and justify this name.(c) identify the gasos liberated at anode and at cathode. Writo one use of each gas.(d) List two important uses of NaOH obtained in the process.
Answer» Answer : (a) X is aqueous solution of SODIUM chloride - $\bold{NaCl(aq)}$ $\rule{200}4$ (b) This process is named as chlor-alkali process because the MAIN products formed are chlorine and alkali(NaOH). $\rule{200}4$ (c) At ANODE $\bold{Cl_2}$ gas and at cathode $\bold{H_2}$ gas are produced. Uses :- Chlorine gas is used in WATER treatment. Hydrogen gas is used in the manufacture of ammonia. $\rule{200}4$ (d) Uses of NaOH :- Used in De-greasing of metals. Used in the manufacture of soaps and DETERGENTS Paper making. Used in manufacturing artificial fibres.

19.

29. When electricity is passed through an aqueous solution of a substance X, sodium hydroxide solution, chlorine gas and hydrogen gas are formed,(a) Write name and chemical formula of substance 'X'.(b) Mention the name of this process and justify this name.(c) identify the gasos liberated at anode and at cathode. Writo one use of each gas.(d) List two important uses of NaOH obtained in the process.

Answer»

Answer :

(a) X is aqueous solution of SODIUM chloride - $\bold{NaCl(aq)}$

$\rule{200}4$

(b) This process is named as chlor-alkali process because the MAIN products formed are chlorine and alkali(NaOH).

$\rule{200}4$

(c) At ANODE $\bold{Cl_2}$ gas and at cathode $\bold{H_2}$ gas are produced.

Uses :-

Chlorine gas is used in WATER treatment.
Hydrogen gas is used in the manufacture of ammonia.

$\rule{200}4$

(d) Uses of NaOH :-

Used in De-greasing of metals.
Used in the manufacture of soaps and DETERGENTS
Paper making.
Used in manufacturing artificial fibres.

Discussion

20.	Corona virus kaise thik hoga
Answer» Answer: I don't think ki CORONA virus ko KUCH hua h jab use kuch hua hi nahi to thik hone ki to baat hi nahi . . . EXPLANATION: ⓦⓐⓘⓢⓔ ⓜⓐⓡⓚ ⓐⓢ ⓑⓡⓐⓘⓝⓛⓘⓔⓢⓣ

20.

Corona virus kaise thik hoga

Answer»

Answer:

I don't think ki CORONA virus ko KUCH hua h

jab use kuch hua hi nahi to thik hone ki to baat hi nahi

.

EXPLANATION:

ⓦⓐⓘⓢⓔ ⓜⓐⓡⓚ ⓐⓢ ⓑⓡⓐⓘⓝⓛⓘⓔⓢⓣ

Discussion

21.	Write three uses of computer??
Answer» ANSWER: $\text{[math]}$ $\huge\red{\ddot\smile}$ $\mathscr{\huge{\pink{HELLO}}}$ :- the three uses of COMPUTER is PLAYING games writing solving math PROBLEM etc.

21.

Write three uses of computer??

Answer»

ANSWER:

$\text{[math]}$

$\huge\red{\ddot\smile}$

$\mathscr{\huge{\pink{HELLO}}}$

:- the three uses of COMPUTER is

PLAYING games
writing
solving math PROBLEM etc.

Discussion

22.	What is limiting reagent
Answer» ANSWER: the REAGENT in chemical reaction that LIMITS the amount of PRODUCT that can be formed . the reaction will stop when all of the limiting reagent is consumed

22.

What is limiting reagent

Answer»

ANSWER:

the REAGENT in chemical reaction that LIMITS the amount of PRODUCT that can be formed . the reaction will stop when all of the limiting reagent is consumed

Discussion

23.	Structure of 5-oxohexanoic acid
Answer» PLS REFER to the above ATTACHED structure pleasefollow me

23.

Structure of 5-oxohexanoic acid

Answer»

PLS REFER to the above ATTACHED structure

pleasefollow me

Discussion

24.	Coordination sphere and ionization sphere
Answer» Answer: Explanation:COORDINATION sphere of a coordination compound consists of the central METAL ion or atom and its attached ligands. The MOLECULAR or IONIC species present outside the coordination sphere constitute the ionization sphere.

24.

Coordination sphere and ionization sphere

Answer»

Answer:

Explanation:COORDINATION sphere of a coordination compound consists of the central METAL ion or atom and its attached ligands. The MOLECULAR or IONIC species present outside the coordination sphere constitute the ionization sphere.

Discussion

25.	Identify the exothermic reactionA) cao is dissolved in waterB) elctrolytic decomposition of waterC) decomposition of vegetable peelsD) all of the above
Answer» ANSWER: all the the above Thank you

25.

Identify the exothermic reactionA) cao is dissolved in waterB) elctrolytic decomposition of waterC) decomposition of vegetable peelsD) all of the above

Answer»

ANSWER:

all the the above

Thank you

Discussion

26.	I am class 4 student please help me
Answer» ANSWER: I can't UNDERSTAND 2 QUESTIONS in that.

26.

I am class 4 student please help me

Answer»

ANSWER:

I can't UNDERSTAND 2 QUESTIONS in that.

Discussion

27.	CECI, is responsible for the decomposition of ozone to form oxygen. Which of thefollowing reacts with ozone to form oxygen?
Answer» DOWNLOAD Mari college react with OXYGEN to form the very DANGEROUS amount of chlorine atom one molecule of chlorine can destroy the 1 million GET molecules of gas

Discussion

28.	A 650 mg multivitamin contains 1.0 mg folic acid. What is the percent by mass of foci acid in the vitamin?
Answer» Answer: 0.153% EXPLANATION: PERCENTAGE of FOLIC ACID = 1/650 × 100 = 0.153%

28.

A 650 mg multivitamin contains 1.0 mg folic acid. What is the percent by mass of foci acid in the vitamin?

Answer»

Answer:

0.153%

EXPLANATION:

PERCENTAGE of FOLIC ACID = 1/650 × 100

= 0.153%

Discussion

29.	Here's A Question!!.........15 g of an element 'A' reacts completely with 30 g of another element 'B'. Calculate relative equivalent weight of A if that of B is 60. .........No Spams!!
Answer» Explanation: Aloha ! $\text { This is Twilight Astro}$ Equivalent weight can be sum of ONE SUBSTANCE with another substance. A:B= 15:30 =1:2 NOW, ½×60 =30 Thank you @ Twilight Astro ✌️☺️ *¯\_(ツ)_/¯*

29.

Here's A Question!!.........15 g of an element 'A' reacts completely with 30 g of another element 'B'. Calculate relative equivalent weight of A if that of B is 60. .........No Spams!!

Answer»

Explanation:

Aloha !

$\text { This is Twilight Astro}$

Equivalent weight can be sum of ONE SUBSTANCE with another substance.

A:B= 15:30

=1:2

NOW,

½×60

=30

Thank you

@ Twilight Astro ✌️☺️

¯\_(ツ)_/¯

Discussion

30.	Please answer this question with explanation..step by step......i'll mark u the brainliest....A metallic oxide (M_2 O_3) contains 40% oxygen. Find out atomic weight of M and molecular weight of M_2 O_3 .
Answer» Answer: CHEMISTRY The OXIDE of a metal contains 40% of oxygen. The valency of metal is 2. What is the ATOMIC weight of the metal? A . 24 B . 12 C . 40 D . 36 October 15, 2019Sahith Lunagaria SHARE VIDEO EXPLANATION ANSWER 100 g of metal oxide will contain 40 g oxygen and 60 g metal. Number of moles of oxygen 16g/mol40g=2.5mol The valency of metal is 2. The formula of metal oxide will be MO. HENCE, number of moles of metal = number of moles of oxygen =2.5mol The atomic weight of the metal is- 2.560=24g/mol. Explanation: PLEASE MARK ME AS BRAINLIEST and LIKE ME

30.

Please answer this question with explanation..step by step......i'll mark u the brainliest....A metallic oxide (M_2 O_3) contains 40% oxygen. Find out atomic weight of M and molecular weight of M_2 O_3 .

Answer»

Answer:

CHEMISTRY

The OXIDE of a metal contains 40% of oxygen. The valency of metal is 2. What is the ATOMIC weight of the metal?

A .

24

B .

12

C .

40

D .

36

October 15, 2019Sahith Lunagaria

SHARE

VIDEO EXPLANATION

ANSWER

100 g of metal oxide will contain 40 g oxygen and 60 g metal.

Number of moles of oxygen 16g/mol40g=2.5mol

The valency of metal is 2. The formula of metal oxide will be MO.

HENCE, number of moles of metal = number of moles of oxygen =2.5mol

The atomic weight of the metal is-

2.560=24g/mol.

Explanation:

PLEASE MARK ME AS BRAINLIEST and LIKE ME

Discussion

31.	The quantum number which is equal for all the d electrons in an atoma.sb.lc.md.n
Answer» Answer: d. N Explanation: n REPRESENTS the no.of the SHELL . so an ATOM would compulsorily have d electrons in the same shell so the n vallue REMAINS same.. for example., scandium - valence electron : ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{1}$ so valence electron is in d orbital n = 3

31.

The quantum number which is equal for all the d electrons in an atoma.sb.lc.md.n

Answer»

Answer:

d. N

Explanation:

n REPRESENTS the no.of the SHELL .

so an ATOM would compulsorily have d electrons in the same shell so the n vallue REMAINS same..

for example.,

scandium - valence electron :

${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{1}$

so valence electron is in d orbital

n = 3

Discussion

32.	Bond order of nitrogen is [ ]a) 2.5 b) 3 c) 2 d) 1
Answer» EXPLANATION: BOND ORDER of NITROGEN is 3

32.

Bond order of nitrogen is [ ]a) 2.5 b) 3 c) 2 d) 1

Answer»

EXPLANATION:

BOND ORDER of NITROGEN is 3

Discussion

33.	Reason behind :ions are more stable than atoms
Answer» Answer: ions are more STABLE than atom as ions contain CHARGE and atoms are electrically NEUTRAL

33.

Reason behind :ions are more stable than atoms

Answer»

Answer:

ions are more STABLE than atom as ions contain CHARGE and atoms are electrically NEUTRAL

Discussion

34.	. Helium is ____ [ ]a) Paramagnetic b) Diamagnetic c) Ferromagnetic d) None
Answer» $\huge\blue{\mid{\underline{\overline{\textbf{Your\: Answer}}}\mid}}$ _________________________________________ $\underline{\red{\bold{ Helium \: is\: (b) \: Diamagnetic..}}}\\$ ________________________________________ $\boxed{\bold{\green{Follow\:Roy\:and\:her\: following}}}\\$ $itzRoy....✪Mark as brainlist ⭐⭐✪$

34.

. Helium is ____ [ ]a) Paramagnetic b) Diamagnetic c) Ferromagnetic d) None

Answer»

$\huge\blue{\mid{\underline{\overline{\textbf{Your\: Answer}}}\mid}}$ _________________________________________

$\underline{\red{\bold{ Helium \: is\: (b) \: Diamagnetic..}}}\\$

________________________________________ $\boxed{\bold{\green{Follow\:Roy\:and\:her\: following}}}\\$

$itzRoy....✪Mark as brainlist ⭐⭐✪$

Discussion

35.	What is phloem ? describe
Answer» Answer: Phloem is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in PARTICULAR the sugar SUCROSE, to parts of the plant where needed. This transport process is called translocation Phloem parenchyma cells, called transfer cells and border parenchyma cells, are located near the finest BRANCHES and terminations of sieve tubes in leaf veinlets, where they also function in the transport of foods. Phloem fibres are flexible LONG cells that make up the soft fibres (e.g., flax and hemp) of commerce. hope it helps you... make me as brainliest...

35.

What is phloem ? describe

Answer»

Answer:

Phloem is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in PARTICULAR the sugar SUCROSE, to parts of the plant where needed. This transport process is called translocation

Phloem parenchyma cells, called transfer cells and border parenchyma cells, are located near the finest BRANCHES and terminations of sieve tubes in leaf veinlets, where they also function in the transport of foods. Phloem fibres are flexible LONG cells that make up the soft fibres (e.g., flax and hemp) of commerce.

hope it helps you...

make me as brainliest...

Discussion

36.	5: What would be osmotic pressure of 0.05N sucrose solution at 5°C? Find out the concentrationof glucose solution which is isotonic with this sucrose solution.D-CRI
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 [

36.

5: What would be osmotic pressure of 0.05N sucrose solution at 5°C? Find out the concentrationof glucose solution which is isotonic with this sucrose solution.D-CRI

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

37.	The molecule with same bond order is [ ]a) CO b) NO+c) CN– d) All
Answer» ANSWER: ACCORDING to me CO is the MOLECULE with same BOND .

37.

The molecule with same bond order is [ ]a) CO b) NO+c) CN– d) All

Answer»

ANSWER:

ACCORDING to me CO is the MOLECULE with same BOND .

Discussion

38.	Please answer this question......i'll mark u the brainliest....A metallic oxide (M_2 O_3) contains 40% oxygen. Find out atomic weight of M and molecular weight of M_2 O_3 .
Answer» 120 is the ANSWER of this QUESTION

Discussion

39.	Give the iupac name of given compund
Answer» Here's your ANSWER! • The compound COOH - CH2 - COOH is having two CARBOXYLIC acid groups at the each CORNER, so the suffix -onic would be added with di- • As there's the presence of 3 carbons, so the compound would be considered as Propane related. • The presence of carboxylic acid groups is on 1st and 3rd position. • IUPAC name = Propane 1,3 - dionic acid. Hope it helps!

39.

Give the iupac name of given compund

Answer»

Here's your ANSWER!

• The compound COOH - CH2 - COOH is having two CARBOXYLIC acid groups at the each CORNER, so the suffix -onic would be added with di-

• As there's the presence of 3 carbons, so the compound would be considered as Propane related.

• The presence of carboxylic acid groups is on 1st and 3rd position.

• IUPAC name = Propane 1,3 - dionic acid.

Hope it helps!

Discussion

40.	What is the structure of copper when formed of rolled?1) fibrous2) granular3) nodular4) none of the above
Answer» Answer: 3 NODULAR I THINK it will HELP you

40.

What is the structure of copper when formed of rolled?1) fibrous2) granular3) nodular4) none of the above

Answer»

Answer:

3 NODULAR I THINK it will HELP you

Discussion

41.	The reaction of 1-bromo-3-chlorocyclobutane with metallic sodium in dioxane gives?
Answer» Answer: it's a WURTZ reaction Explanation: you will get answer as a bicycle (1, 1, 0) BUTANE

41.

The reaction of 1-bromo-3-chlorocyclobutane with metallic sodium in dioxane gives?

Answer»

Answer:

it's a WURTZ reaction

Explanation:

you will get answer as a bicycle (1, 1, 0) BUTANE

Discussion

42.	What is the structure of copper when formed of rolled?
Answer» Answer: STRUCTURE. Copper has a face centred cubic (FCC) CRYSTAL structure. Copper and its alloys have a RANGE of yellow/gold/red COLOURS and when polished develop a bright METALLIC lustre. Explanation: mark it and follow me...

42.

What is the structure of copper when formed of rolled?

Answer»

Answer:

STRUCTURE. Copper has a face centred cubic (FCC) CRYSTAL structure. Copper and its alloys have a RANGE of yellow/gold/red COLOURS and when polished develop a bright METALLIC lustre.

Explanation:

mark it and follow me...

Discussion

43.	A compound contains atoms X,Y,Z. The oxidation number of X is +2, Y is +5 and Z is -2. The possible formula of the compound is ?
Answer» ANSWER: the POSSIBLE FORMULA is XY2Z6

43.

A compound contains atoms X,Y,Z. The oxidation number of X is +2, Y is +5 and Z is -2. The possible formula of the compound is ?

Answer»

ANSWER:

the POSSIBLE FORMULA is XY2Z6

Discussion

44.	H2S + HNO3 --> S + NO in acidic solution final redox reaction
Answer» EXPLANATION: SEE ATTACHMENT for BETTER UNDERSTANDING.

44.

H2S + HNO3 --> S + NO in acidic solution final redox reaction

Answer»

EXPLANATION:

SEE ATTACHMENT for BETTER UNDERSTANDING.

Discussion

45.	Why is window's pane of heritage building taper at top and thin at bottom
Answer» Correct Question: Why is window's pane of heritage building taper at top and THICK at bottom? Correct Answer: Window panes of heritage buildings are taper at top and thick at bottom due to the flow of glass with time. - Glass is said to be a super cooled liquid or a pseudo SOLID. - It has very high viscosity. - So, in a very LONG duration of time, it flows down slowly. - Due to this REASON, the window pane gets THICKER at the bottom and tapered at the top.

45.

Why is window's pane of heritage building taper at top and thin at bottom

Answer»

Correct Question:

Why is window's pane of heritage building taper at top and THICK at bottom?

Correct Answer:

Window panes of heritage buildings are taper at top and thick at bottom due to the flow of glass with time.

- Glass is said to be a super cooled liquid or a pseudo SOLID.

- It has very high viscosity.

- So, in a very LONG duration of time, it flows down slowly.

- Due to this REASON, the window pane gets THICKER at the bottom and tapered at the top.

Discussion

46.	How many F ions are persent in 2.50 mole of BaF3A 1.5* 10 24 B3.01× 10^24C 5.00D 8.31 * 10 24
Answer» ANSWER: C) 5.00. 10^24 HOPE YOU WILL GET HELP

46.

How many F ions are persent in 2.50 mole of BaF3A 1.5* 10 24 B3.01× 10^24C 5.00D 8.31 * 10 24

Answer»

ANSWER:

C) 5.00. 10^24

HOPE YOU WILL GET HELP

Discussion

47.	Balance the equation below1)
Answer» ANSWER: hi good morning but where is the EQUATION

47.

Balance the equation below1)

Answer»

ANSWER:

hi

good morning

but where is the EQUATION

Discussion

48.	Question: How Many F- Ions Are Present In 2.50 Moles Of BaF2?
Answer» 2.50molBaF2 X 2molF-/1molBaF2 x 6.02x10^23F-/1molF- = 3.01 x 10^24 If you satisfy on my answer PLEASE mark it BRAINLIEST ✏️✏️✏️✏️✏️✏️✏️✏️✏️✏️

48.

Question: How Many F- Ions Are Present In 2.50 Moles Of BaF2?

Answer»

2.50molBaF2 X 2molF-/1molBaF2 x 6.02x10^23F-/1molF- = 3.01 x 10^24

If you satisfy on my answer PLEASE mark it BRAINLIEST ✏️✏️✏️✏️✏️✏️✏️✏️✏️✏️

Discussion

49.	Wha is the meaning of Bpl??
Answer» ANSWER: heya❤ below POVERTY line. 《《hope it HELPS 》》

49.

Wha is the meaning of Bpl??

Answer»

ANSWER:

heya❤

below POVERTY line.

《《hope it HELPS 》》

Discussion

50.	Plz answer me this... It is urgently needed
Answer» ANSWER: I don't KNOW jgouq2dbohqcsxkaxihv to do so jgqsxxkhwxvhkwfskhqfhkfqskjfqshkfhfhwggwwwfshcssfhsscdvhdvhvdvhevhefheffhefeefevefgeghfhgwrhvwrvehvwegfegVwehedgvwevhwdvhwdhvwedhwdhcwevhwdvhwdvhqwvhwdvhwevhwdhvwdhfdvwhwefhwegvweghedbrecherche HOWEVER NEVERTHELESS wyfsgjfwshjfqshfkqhdfkujwfdyjfwdyjfqsjyfqsukfufkqsukfqsykfwj❤❤❤❤❤syfukqfdukfqdyjfwxufk

50.

Plz answer me this... It is urgently needed

Answer»

ANSWER:

I don't KNOW

jgouq2dbohqcsxkaxihv to do so jgqsxxkhwxvhkwfskhqfhkfqskjfqshkfhfhwggwwwfshcssfhsscdvhdvhvdvhevhefheffhefeefevefgeghfhgwrhvwrvehvwegfegVwehedgvwevhwdvhwdhvwedhwdhcwevhwdvhwdvhqwvhwdvhwevhwdhvwdhfdvwhwefhwegvweghedbrecherche HOWEVER NEVERTHELESS wyfsgjfwshjfqshfkqhdfkujwfdyjfwdyjfqsjyfqsukfufkqsukfqsykfwj❤❤❤❤❤syfukqfdukfqdyjfwxufk

Discussion

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If you satisfy on my answer PLEASE mark it BRAINLIEST ✏️✏️✏️✏️✏️✏️✏️✏️✏️✏️

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Plz answer me this... It is urgently needed ​

SI unit of mass and weight

Write the equations for the following reactions in the ionic form and balance the ionice(1) Magnesium is treated with dilute sulphuric acid.(i) Stannous chloride solution is added into mercuric chloride solution.(iii) H2S gas is passed into copper (II) sulphate solution.

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Answer my all questions

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How to separate the mixture of h2 and o2

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The reaction of 1-bromo-3-chlorocyclobutane with metallic sodium in dioxane gives?

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Why is window's pane of heritage building taper at top and thin at bottom

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Balance the equation below1)

Question: How Many F- Ions Are Present In 2.50 Moles Of BaF2?

Wha is the meaning of Bpl??

Plz answer me this... It is urgently needed