Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

ब्लड clotting के लिए। कौन सी ब्लड cell कार्य करती है। ​

Answer» ONG>Answer:

WHITE blood cells and platelets

EXPLANATION:

hope it is CORRECT

MARK as brainliest

2.

What is the action of chlorine on cold and dilute sulphuric acid​

Answer»

ong>ANSWER:

I don't know this QUESTION's answer SORRY

3.

Classify Gum in water, Blood, Copper sulphate solution in water, Chalk dust in water as true/ colloidal/ suspension solutions.​

Answer» ONG>ANSWER:

Suspension SOLUTION

Explanation:

ok thanks

4.

3.42 g sucrose are dissolved in 18 g of water in a beaker. The number of oxygen atoms in the solution are? with steps​

Answer»

ong>Answer:

6.68×1023

Explanation:

Molar mass of sucrose = 342 g

No. of OXYGEN atoms in 342 g of (C12H22O11) =11×NA

∴ No. of oxygen atoms in 3.42 g of (C12H22O11) =34211×NA×3.42 = 0.11NA

No. of oxygen atoms in 18g of H2O =1NA

∴ Total no. of oxygen atoms in 3.42g of sucrose and 18g of WATER =0.11NA+1NA=1.11NA=1.11×6.02×1023=6.68×1023.

5.

Compare optical, filtration and stability properties of True, Colloidal and Suspension solutions.​

Answer»

ong>Answer:

State whether the following statements are true or false:

1. wastewater released from houses is called domestic sewage. { }

2.discharge of untreated sewage into water bodies leads to dense algal growth. { }

3. stagnant water does not LEAD to any disease. { }

4. DRIED sludge can be used as manure. { }

5. contamination of drinking water can happen in cover drains also. { }

6. chemical product such as medicines, motor oils, paints, GREASE, machine oil and insecticides may kill water-purifying microorganisms and ACCELERATE the the degradation process

6.

17- Which was most powerful in Roman empire, before 27 BCESenateConstantineооооO EmperorO Common public​

Answer» ONG>Answer:

HI I am ӁJØKÊRӁӁJØKÊRӁӁJØKÊRӁ XD XD XD XD XD

Explanation:

please folo me

7.

ThereactionofC6H5CH=CHCHOwithNaBH4gives​

Answer»

ong>Answer:

Answer:

Answer:

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Width of rectangle is 25 cm.

Step-by-step explanation:

Given :-

A wire BEND in form of square of side 30 cm.

Then wire is again bend in form of rectangle of length 35 cm.

To find :-

Width of the rectangle.

Solution :-

Here, Concept is : If we are BENDING wire in form of square than again bending it in rectangle. Than, perimeter of square will equal to perimeter of rectangle because we are not increasing length of wire by ONE MEASURE we are bending it in square and rectangular shape.

So,

Perimeter of square = 4 × side

⟶ Perimeter = 4 × 30

⟶ Perimeter = 120

Thus,

Perimeter of square is 120 cm.

According to concept, Perimeter of square and perimeter of rectangle are equal.

So, Perimeter of rectangle is 120 cm.

Let, Breadth or width or rectangle be x cm.

We know,

Perimeter of rectangle = 2(Length + Breadth)

⟶ 120 = 2×(35 + x)

⟶ 120 = 70 + 2x

\⟶ 120 - 70 = 2x

50 = 2x

⟶ 50/2 = x

⟶ x = 25

We take, Width of rectangle be x.

Therefore,

Width of rectangle is 25 cm.

8.

Give the structural formulaси сH СНа са сH3​

Answer»

ong>ANSWER:

in first after C , which ALPHABET is there

9.

1. Classify the following into elements, compounds and mixtures. a. Sodiumb. Soil c. Sugar solution d. Silver2. If an atom contains one electron and one proton, will it carry any charge or not?​

Answer» ONG>ANSWER:

compound

sodium

silver

other are MIXTURES

10.

Which one of the following compounds of xenon cannot be prepared (a) XeF(b) XeF2(d) XeF.(c) XeF,​

Answer»

is the CORRECT ANSWER

11.

detection of element [N, s, p and halogens] and detection of functional group including monosaecharides. _COOH, phenolic -OH, Aldehydic,ketonic, nitro, nitro, amino and amides.​

Answer»

rry
EXPLANATION: I don’t know the answr BETTER LUCK next

12.

Hydrogen 1. BrassCheese from milk2. Sub-atomic particlesElectron, Proton3. metalloidsMixtureCompressiblerefrigerant4. Oxygen in air5. The boiling point of water is6. Gases are highly7. Liquid nitrogen8. Rocket fuel100 CSiliconDesirable changes9. Irreversible changes21%10. Ripening of fruit​

Answer»

ong>ANSWER:

QUESTION is not clear..what are U ASKING about?

13.

Name five ores of chromium.​

Answer»

ong>ANSWER:

CHROMIUM is used to HARDEN steel, to manufacture stainless steel (named as it won't RUST) and to produce several alloys. Chromium plating can be used to give a polished mirror finish to steel. Chromium-plated car and lorry parts, such as bumpers, were once very common.

14.

Write down mechanism of free radical substitution reaction

Answer»

ong>Answer:

The mechanism INVOLVES a chain reaction. During a chain reaction, for EVERY reactive SPECIES you start off with, a new ONE is generated at the end - and this keeps the process going. ... The over-all process is known as free radical substitution, or as a free radical chain reaction.These new free radicals go on to generate yet more free radicals, and so on. Propagation steps often involve hydrogen abstraction or addition of the radical to double BONDS. Chain termination occurs when two free radical species react with each other to form a stable, non-radical adduct.

hope it helps

pls mark me as Brainiliest

15.

Find out Ph of following: a) 0.2M HCl b) 0.03 M H2SO4

Answer»

wer⤵️

0.2M HCL - 1.4 pH

All the BEST :)

16.

Which rule is violated in the electronic configuration 1s​

Answer»

ong>ANSWER:

Aufbau principle is violated in this ELECTRONIC configuration. Thus, 1s should be FULLY FILLED.

17.

Which of the following is an anion with velency two​

Answer»

ong>ANSWER:

hii

Explanation:

how is your DAY going TODAY

18.

In homologous series 2 consecutive hydrocarbons differ by? A) 12u B) 13u C) 14u

Answer»

ong>Explanation:

14 u is the CORRECT ANSWER

HOPE it helps bro/sis

19.

Mention an example one defferent between atom and molecule​

Answer» ONG>Answer:

A molecule is made up of atoms bonded together. So, while an atom is its own separate ENTITY, a molecule is what you get when those atoms bond together. These might be the same ELEMENTS, such as two OXYGEN atoms bonded together (O2), or it might be different atoms bonded together like water (H2O).

20.

In homologous series 2 consecutive hydrocarbons differ by? 12u 13u 14u

Answer»

ong>EXPLANATION:

TWO consecutive homologues differ by 1 CARBON atom and 2 hydrogen atoms in their molecular FORMULAE.

21.

वाईआर कव्वाल एंड कंपाउंड आर पुर कंडक्टर ऑफ इलेक्ट्रिसिटी​

Answer»

gvhhgggggfffgggggggvggzbbebwbsbdbdbsbsbs zhsbhs

22.

Question 3 :Aluminium is a filling the blanks​

Answer»

ong>Answer:

ALUMINUM (AL), also spelled aluminium, chemical element, a LIGHTWEIGHT silvery white metal of main Group 13 (IIIa, or boron group) of the periodic table. ... Aluminum is the most abundant metallic element in Earth's crust and the most WIDELY used NONFERROUS metal.

23.

Find molarity of H+ions if 49g H2So4 is dissolve in 250 ml solution​

Answer»

ong>ANSWER:

Explanation:

Answer:

Answer:

Answer:

Answer:

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Width of rectangle is 25 cm.

Step-by-step explanation:

Given :-

A wire bend in form of square of side 30 cm.

Then wire is again bend in form of rectangle of length 35 cm.

To find :-

Width of the rectangle.

Solution :-

Here, CONCEPT is : If we are bending wire in form of square than again bending it in rectangle. Than, perimeter of square will equal to perimeter of rectangle because we are not increasing length of wire by one measure we are bending it in square and rectangular shape.

So,

Perimeter of square = 4 × side

⟶ Perimeter = 4 × 30

⟶ Perimeter = 120

Thus,

Perimeter of square is 120 cm.

According to concept, Perimeter of square and perimeter of rectangle are equal.

So, Perimeter of rectangle is 120 cm.

Let, Breadth or width or rectangle be x cm.

We know,

Perimeter of rectangle = 2(Length + Breadth)

⟶ 120 = 2×(35 + x)

⟶ 120 = 70 + 2x

\⟶ 120 - 70 = 2x

50 = 2x

⟶ 50/2 = x

⟶ x = 25

We take, Width of rectangle be x.

Therefore,

Width of rectangle is 25 cm.

24.

Idh-bnpf-rwb in the forest at LEGO® Friends Mia's House! ... Small parts and Small Ball. ... chairs, a well to fetch water for Mia's horse Metzie, and a grooming area where she can be groomed.​

Answer»

jgdhkfhkfljflh

25.

डाई एजोटी करण से क्या समझते हो​

Answer» ONG>ANSWER:

Which WORD in the passage means as a GROUP?

Explanation:

Which word in th

e passage means as a group?

26.

i) Draw the sketch of Bohr model of atom ii) What do you mean by ATOMIC NUMBER. iii) How many electrons can be accommodated in n=3 shell in Bohr model of atom

Answer»

rong>18 electrons can be ACCOMMODATED in n=3 shell in Bohr model of atom.

27.

What is meant by isomerism?​

Answer» ONG>Answer:

Isomerism, the EXISTENCE of MOLECULES that have the same numbers of the same kinds of atoms (and hence the same formula) but different in chemical and physical properties.

28.

2,8,1;2,8,2;2,8,8,2;2,1 a) identify group number of each elementb) which two elements belong to same groupc) compare atomic radii of A,B and D​

Answer»

ong>ANSWER:

a)GROUP NUMBER OF:-

2,8,1  is an ELEMENT of Group  1

2,8,2  is an element of Group 2

2,8,8,2 is an element of Group 2

2,1 is an element of Group 1

b)2,8,1 and 2,1 belong to same group

2,8,2 and2,8,8,2 belong to same group

29.

the outermost shell of an element whith three shell contain 8 electron what is the electronic configuration​

Answer» ONG>ANSWER:

ELECTRONIC configuration-2,8,8

30.

FILL IN THE BLanks 1. The two classification of the mixtures are&..2 Dust in the air is an example of....mixture.3. An example of a monoatomic molecule is4 Valency of an element X is 3. Write the chemical formula of its oxide.5. Write the electronic configuration of an element whose atomic number is 11.8. The substances that react together in a chemical reaction are called9 Magnesium +Magnesium nitride.TO. Plants and animals needfor their growth and functioning.11. The boiling point of liquid nitrogen is12is a non-combustible gas but is a good supporter of combustion.13. Matter has mass and occupies..14. The change of a solid into liquid.15. The change of vapour into a liquid16. The gaseous state of a liquid is called.is an alloy made from mixing copper and tin.18is also used electroplating metal articles to prevent corrosion.19. Ferrous sulphate is used to treat20. Magnesium is an essential element both inand21. Latin name of potassium is.are fixed paths in which electrons move around the nucleus.​

Answer»

ong>Explanation:

5: SODIUM 1S2 2s2 2p6 3S1

21:kalium

31.

Angie has ________(candy​

Answer»

ong>ANSWER:

CANDY

Explanation:

candy ayega ok pls

32.

The table shows the boiling points of some of the gases present in air. When air is cooled to -200°C, some of these gases liquefy. Which gases liquefy?a. argon, helium, neonb. argon, nitrogen, oxygenc. helium, neon, nitrogend. helium and neon ​

Answer»

ong>ANSWER:

option B is correct✔.

ARGON, nitrogen, OXYGEN

33.

In which of the following, the carbon-oxygen bonds are of equal lengths? (1) CH3COO-(2) CH3COOH(3) CH3COOC2H5(4) All of thesepizza no spam.​

Answer»

EXPLANATION:

Acetate ion forms a resonance structure where the negative charge is delocalized over all three atoms and THEREFORE, TWO carbon-oxygen bonds are of equal length. The negative charge is spread over the end of the molecule equally. The two bonds are shorter than a single bond but longer than double bond.

Bond length decreases with multiplicity of bond between two atoms. For example, bond length of ethane > ethene > ETHYNE.

Hence, assertion is TRUE, reason is true and reason is not the correct explanation for assertion.

34.

Fill in the blanks b,c,d​

Answer» ONG>ANSWER:

B 100

c-sonority

d-reactants

35.

What are paired estersulphuric acids , define its chemical nature​someone please answer

Answer» ONG>ANSWER:

I doknow the answer

36.

Water of cryastallzation present in aluminum sulphate are​

Answer» ONG>EXPLANATION:

Water of crystallization present in aluminum sulphate are. B. 18.

37.

0.5 mole of H2 reacts with 0.25 mol of 02 what will be amount of h20 formed. A 18g. B36 g. C. 9g. D 4.5 g

Answer» ONG>Explanation:

9gr 0.5 MOLESOF H2O OBTAINED

38.

Read the following and answer any four questions from 17 (i) to 17 (v) Isotopes are the atoms of the same element with same atomic number but different mass number. Isotopes of same element have same chemical properties due to same number of electrons. Atomic number of an atom is the number of electrons / protons in it and mass number is the sum of protons and neutrons​

Answer»

ong>EXPLANATION:

YES MAM please find ATTACHED the assignment mam please find attached the assignment mam please find attached the assignment mam please find the ATTACHMENT of the assignment mam

39.

I) Define atomic mass unit. ii) What is the numerical value of mole. iii) Name the elements present in oxide ionin short plz​

Answer»

ong>Answer:

The dalton or unified atomic mass unit is a unit of mass widely used in physics and chemistry. It is defined as 1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest. The atomic mass constant, denoted mᵤ is defined identically, giving mᵤ = m/12 = 1 Da.

One mole contains exactly 6.022 140 76 X 1023 elementary entities. This number is the fixed numerical VALUE of the AVOGADRO constant, NA, when expressed in the unit mol–1 and is called the Avogadro number.

An oxide (/ˈɒksaɪd/) is a CHEMICAL compound that contains at least one oxygen atom and one other element in its chemical formula. "Oxide" itself is the dianion of oxygen, an O2– (molecular) ion.

40.

An element A whose atomic radius is 0.150 pm crystallises in a bcc unit cell. Calculate the edge length of the unit cell.​

Answer» ONG>EXPLANATION:

this is the ANSWER of the QUESTION

41.

A solution has 50 gram of salt in 320 gram of water. Calculate the mass percent of the salt in the solution .​

Answer» ONG>ANSWER:

माला माहिती नही

दर्दतदतड़तूतूतूड़तदतड़ट्स7रदतुड़7444सड़

42.

Which of the following is a reaction of dilute hydrochloric acid? a. ammonium chloride reacts to give ammoniab. calcium carbonate reacts to give carbondioxidec. copper reacts to give hydrogend. universal indicator paper turns blue ​

Answer»

ong>Answer:

B. Calcium CARBONATE reacts to give CO2

43.

Name the method used to separate the following mixtures. a) Miscible liquids b) Dye from ink c) Components of air​

Answer»

ong>Answer:

a) Miscible LIQUIDS :- SIMPLE distillation

️‍️️‍️

b) Dye from ink :- Chromatography

️‍️️‍️

c) Components of air :- FRACTIONAL distillation

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44.

Write the structural formula of propene​

Answer» ONG>Answer:

C3H6

hope it HELPS you

GOOD afternoon

45.

Why is phosphorus kept in water​

Answer» ONG>Answer:

gdgxgsfz HD bCagbfzcs FYI FT GO y

46.

on keeping an iron nail in copper sulphate solution for 2 hours the colour of the solution changes into ​

Answer» ONG>EXPLANATION:

If one of the zeroes of the cubic polynomial x3 + AX2 + bx + c is -1, then the product of the other TWO zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes isIf one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the other two zeroes is

47.

Which of the following is a property of ethanoic acid but is not a property of sulphuric acid? a. it reacts with copper(ll) oxideb. it reacts with sodium carbonatec. it reacts with magnesiumd. it burns in air​

Answer» ONG>ANSWER:

mark me as brainliest and THANK you

Explanation:

a is the RIGHT answer ☺️

48.

What is the numerical value of mole​

Answer»

ong>ANSWER:

ONE MOLE contains exactly 6.022 140 76 x 1023 elementary entities. This number is the fixed NUMERICAL value of the Avogadro constant, NA, when expressed in the unit mol–1 and is CALLED the Avogadro number.

49.

शहरी जीवनातील बाल्यावस्था (स्वमान​

Answer» ONG>EXPLANATION:

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REFER The Attachment

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Hope it's HELP

50.

Find the molecule mass of Hydrogen​

Answer»

ong>ANSWER:

Sample Molecular Weight Calculation

Using the periodic table of the ELEMENTS to FIND atomic weights, we find that hydrogen has an atomic weight of 1, and oxygen's is 16. In order to calculate the molecular weight of one water molecule, we add the contributions from each atom; that is, 2(1) + 1(16) = 18 grams/mole.

Explanation:

This is the correct answer