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.

Which of the following statement does not hold true for the following reaction?xCu3P+yCr2O2−7+zH+→Cu2++H3PO4+Cr3+

Answer»

Which of the following statement does not hold true for the following reaction?

xCu3P+yCr2O27+zH+Cu2++H3PO4+Cr3+



2.

R-CO-R' REACTING WITH CONC.H2SO4 GIVES ? R-CO-R' REACTING WITH DIL. H2SO4 GIVES ? R-OH REACTING WITH CONC.H2SO4 GIVES ? R-OH REACTING WITH DIL.H2SO4 GIVES ? SYMMETRICAL ETHER REACTING WITH HI GIVES ? UNSYMMETRICAL ETHER REACTING WITH HI GIVES ?

Answer» R-CO-R' REACTING WITH CONC.H2SO4 GIVES ? R-CO-R' REACTING WITH DIL. H2SO4 GIVES ? R-OH REACTING WITH CONC.H2SO4 GIVES ? R-OH REACTING WITH DIL.H2SO4 GIVES ? SYMMETRICAL ETHER REACTING WITH HI GIVES ? UNSYMMETRICAL ETHER REACTING WITH HI GIVES ?
3.

Which of the following compound has the largest equilibrium constant for the addition of water ?

Answer»

Which of the following compound has the largest equilibrium constant for the addition of water ?


4.

The product D of the reaction CH3ClKCN−−−→(A)H2O−−→(B)NH3−−−→(C)△−→(D)is

Answer»

The product D of the reaction

CH3ClKCN−−(A)H2O(B)NH3−−(C)(D)is

5.

Following figure shows two processes A and B for a gas. If ΔQA and ΔQB are the amount of heat absorbed by the system in two cases and ΔUA and ΔUB are changes in internal energies respectively, then

Answer»

Following figure shows two processes A and B for a gas. If ΔQA and ΔQB are the amount of heat absorbed by the system in two cases and ΔUA and ΔUB are changes in internal energies respectively, then


6.

Oxidation states of +2 or +4 cannot be shown by:

Answer»

Oxidation states of +2 or +4 cannot be shown by:

7.

Which one of the following react with phenol to form anisole?

Answer»

Which one of the following react with phenol to form anisole?

8.

13. How to find n-factor by oxidation number

Answer» 13. How to find n-factor by oxidation number
9.

11. Caesium and chloride ions are in contact along body diagonal in body centered cubic lattice .the edge length of unit cell is 350pm and Cs has a radius of 133 .hence radius of cl ion is

Answer» 11. Caesium and chloride ions are in contact along body diagonal in body centered cubic lattice .the edge length of unit cell is 350pm and Cs has a radius of 133 .hence radius of cl ion is
10.

16. how around a carbon atom bond forms with another carbon as tetrahedral manner

Answer» 16. how around a carbon atom bond forms with another carbon as tetrahedral manner
11.

What are the major properties of HCP lattice (like coordination number , packing efficiency etc.)?

Answer» What are the major properties of HCP lattice (like coordination number , packing efficiency etc.)?
12.

The average osmotic pressure of human blood is 7.8 bar at 30°C.the concentration of aqueous Nacl solution that could be used in the blood stream is

Answer» The average osmotic pressure of human blood is 7.8 bar at 30°C.the concentration of aqueous Nacl solution that could be used in the blood stream is
13.

How to find facial and meridional isomers

Answer» How to find facial and meridional isomers
14.

48. determine the degree of association for the reaction in aqueous medium. if observed mean molar mass of HCHO and C6 h12 o6 is 150 .

Answer» 48. determine the degree of association for the reaction in aqueous medium. if observed mean molar mass of HCHO and C6 h12 o6 is 150 .
15.

40 Major product and total no. of products when 3 methyl cyclohexene reacts with HBr and also when 3 bromo cyclohexene reacts with HBr and why the difference?

Answer» 40 Major product and total no. of products when 3 methyl cyclohexene reacts with HBr and also when 3 bromo cyclohexene reacts with HBr and why the difference?
16.

pressure of 1g of ideal gas A at 300K is 1 bar.when 2g of another ideal gas B is introduced in the same flask at same temperature the pressure becomes 3 bar.Find relatin between their molecular masses.

Answer» pressure of 1g of ideal gas A at 300K is 1 bar.when 2g of another ideal gas B is introduced in the same flask at same temperature the pressure becomes 3 bar.Find relatin between their molecular masses.
17.

Identify Y.

Answer»
Identify Y.
18.

Question 6(a) Write any one use of nitrogen gas.(b) Does Nitrogen flushing help in food preservation?

Answer»


Question 6



(a) Write any one use of nitrogen gas.



(b) Does Nitrogen flushing help in food preservation?



19.

The work done in an open vessel at 300 Kelvin 56 gram iron react with dilute HCl

Answer» The work done in an open vessel at 300 Kelvin 56 gram iron react with dilute HCl
20.

Which of the following is functional isomer of ?

Answer» Which of the following is functional isomer of ?
21.

explain why atoms with half filled and completely filles configuration are extra stable

Answer»

explain why atoms with half filled and completely filles configuration are extra stable

22.

When an hydrogen atom emits a photon of energy 12.08 ev its orbital angular momentum changes by _______

Answer» When an hydrogen atom emits a photon of energy 12.08 ev its orbital angular momentum changes by _______
23.

Between naphthalene and diphenyl methane, which compound has higher resonance energy

Answer» Between naphthalene and diphenyl methane, which compound has higher resonance energy
24.

Which of the following statement is not true for diborane (B2H6)

Answer» Which of the following statement is not true for diborane (B2H6)
25.

Can subset be denoted by symbol epsylon

Answer» Can subset be denoted by symbol epsylon
26.

Kindly explain the process (mechanism) of Beckmann-rearrangement

Answer» Kindly explain the process (mechanism) of Beckmann-rearrangement
27.

Explain the termsInductive and Electromeric effects. Which electron displacementeffect explains the following correct orders of acidity of thecarboxylic acids?(a) Cl3CCOOH> Cl2CHCOOH > ClCH2COOH(b) CH3CH2COOH> (CH3)2CHCOOH > (CH3)3C.COOH

Answer»

Explain the terms
Inductive and Electromeric effects. Which electron displacement
effect explains the following correct orders of acidity of the
carboxylic acids?


(a) Cl3CCOOH
> Cl2CHCOOH > ClCH2COOH


(b) CH3CH2COOH
> (CH3)2CHCOOH > (CH3)3C.COOH

28.

Which solubility order is correct some say a and some say b(a) Cscl >Licl >Rbcl> Nacl> Kcl(b) Cscl >Rbcl > Nacl> Kcl> Licl

Answer» Which solubility order is correct some say a and some say b
(a) Cscl >Licl >Rbcl> Nacl> Kcl
(b) Cscl >Rbcl > Nacl> Kcl> Licl
29.

How to find the molar mass of any molecule??

Answer» How to find the molar mass of any molecule??
30.

how many types of bonds are there in c2h6 , 2 or 1

Answer» how many types of bonds are there in c2h6 , 2 or 1
31.

The figure given show the conversion of substrate into product by an enzyme. In which one of the four options, the components of the reaction labeled A, B, C, D are identified correctly.

Answer»

The figure given show the conversion of substrate into product by an enzyme. In which one of the four options, the components of the reaction labeled A, B, C, D are identified correctly.


32.

Which of the following binary xenon fluorides produce hydrofluoric acid on hydrolysis?

Answer»

Which of the following binary xenon fluorides produce hydrofluoric acid on hydrolysis?



33.

69 mg of an alcohol (R−OH) was treated with CH3MgBr and the gas evolved was measured to be 33.6 ml at STP. The molar mass (g/mol) of alcohol is .

Answer» 69 mg of an alcohol (ROH) was treated with CH3MgBr and the gas evolved was measured to be 33.6 ml at STP. The molar mass (g/mol) of alcohol is .
34.

two metalic oxides contain 27.6% and 30%oxygen respectively. If the formulaof the first oxide is X3O4,that of the second will b

Answer» two metalic oxides contain 27.6% and 30%oxygen respectively. If the formulaof the first oxide is X3O4,that of the second will b
35.

Why significant figures are more appropriate in addition with respect of chemistry

Answer» Why significant figures are more appropriate in addition with respect of chemistry
36.

why is ionisation enthalpy of hydrogen higher than that of sodium?refer exemplar problem

Answer» why is ionisation enthalpy of hydrogen higher than that of sodium?
refer exemplar problem
37.

An unknown compound A has a molecular formula C4H6. When A is treated with an excess of Br2 a new substance B with formula C4 H6 Br4 is formed. A forms a white precipitate with ammonia cal silver nitrate solution. A may be

Answer»

An unknown compound A has a molecular formula C4H6. When A is treated with an excess of Br2 a new substance B with formula C4 H6 Br4 is formed. A forms a white precipitate with ammonia cal silver nitrate solution. A may be


38.

When ethyl iodide is treated with alcoholic potash, we get:

Answer»

When ethyl iodide is treated with alcoholic potash, we get:



39.

Tautomer(s) of above compound is/are:

Answer»
Tautomer(s) of above compound is/are:


40.

12. oxidation state of C in H2C2O4

Answer» 12. oxidation state of C in H2C2O4
41.

45.Why hydration energy of NaCl is endothermic

Answer» 45.Why hydration energy of NaCl is endothermic
42.

Consider the following expressions:(i) False(ii) Q(iii) True(iv) P∨Q(v) ⇁Q∨PThe number of expressions given above that are logically implied by P∧(P⇒Q) is4

Answer»

Consider the following expressions:



(i) False

(ii) Q

(iii) True

(iv) PQ

(v) QP



The number of expressions given above that are logically implied by P(PQ) is



  1. 4
43.

If for a sucrose solution, elevation in boiling point is 0.1°C then what will be the boiling point of NaCl solution for same molal concentration

Answer»

If for a sucrose solution, elevation in boiling point is 0.1°C then what will be the boiling point of NaCl solution for same molal concentration



44.

Spin only magnetic moment of the compound Hg[Co(SCN)4] is

Answer»

Spin only magnetic moment of the compound Hg[Co(SCN)4] is


45.

(क) सुधा के स्वप्नों की इंद्रधनुषी दुनिया में अँधेरा कैसे छा गया?(ख) डॉ. सेठी ने सुधा के लिए क्या किया?(ग) सुधा पूरे भारत में कैसे लोकप्रिय हो गई?

Answer»

(क) सुधा के स्वप्नों की इंद्रधनुषी दुनिया में अँधेरा कैसे छा गया?



(ख) डॉ. सेठी ने सुधा के लिए क्या किया?



(ग) सुधा पूरे भारत में कैसे लोकप्रिय हो गई?

46.

Question 15 Which of the following ions will cause hardness in water sample? (a) Ca2+ (b) Na+ (c) Cl− (d) K+

Answer»

Question 15

Which of the following ions will cause hardness in water sample?

(a) Ca2+ (b) Na+ (c) Cl (d) K+

47.

What are ferrimagnetic solids

Answer» What are ferrimagnetic solids
48.

what is significant figures In case multiple and division

Answer» what is significant figures In case multiple and division
49.

What is the change in oxidation number of carbon in the following reaction?CH4(g)+4Cl2(g)→CCl4(l)+4HCl(g)

Answer»

What is the change in oxidation number of carbon in the following reaction?

CH4(g)+4Cl2(g)CCl4(l)+4HCl(g)

50.

A nugget of gold and quartz was found to contain x g of gold and y g of quartz and has density d. If the densities gold and quartz are d1and d2 respectively then the correct relation is

Answer»

A nugget of gold and quartz was found to contain x g of gold and y g of quartz and has density d. If the densities gold and quartz are d1and d2 respectively then the correct relation is