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.

Assertion : (C2H5)3N is less basic than trimethylamine (CH3)3N Reason : Due to hyperconjugation of C2H5 is less than methyl.(1) If both assertion and reason are true and reason is the correct explanation of assertion. (2) If both assertion and reason are true but reason is not the correct explanation of assertion. (3) If assertion is true but reason is false. (4) If both assertion and reason are false.

Answer»

(3) If assertion is true but reason is false

2.

Compare stability of free radicals(I) CH3 - CH - CH3(1) II > I > III > IV (2) II > I > IV > III (3) I > II > III > IV (4) IV > III > I > II

Answer»

(2) II > I > IV > III

3.

How many spectral line of balmer series present in visible region : (1) 5 (2) 4 (3) 2 (4) 3 

Answer»

Correct option: (2) 4

4.

Number of visible lines in Balmer series. (1) 2 (2) 4 (3) 3 (4) 5

Answer»

Correct option: (2) 4

Explanation: 

First four lines are only in visible reigon. 5th line goes in u.v. reigon.

5.

Column IIColumn II(A) Tyrosine(P) Essential amino acid(B) Serin (Q) Ceric Ammonium Nitrate(C) Tryptophane(R) Neutral FeCl3(D) Proline(S) Carbaylamine Test - NegativeSelect the correct set of answer:(1) A - R, B - Q, C- P, D - S(2) A - Q, B - R, C - S, D -  (3) A - R, B - P, C - Q, D - S (4) A - S, B - Q, C- P, D- R

Answer»

(1)  A - R, B - Q, C - P, D - S

6.

H2O2 is obtained by which of the following(1) BaO2 (2) MnO2 (3) SeO2 (4) TeO2

Answer»

Correct option (1) BaO2

Explanation: 

BaO2.8H2O(s) + H2SO4(aq)  BaSO4(s) + H2O2(aq) + 8H2O(l)

7.

Ram is the brother of Seema & Ram is married to Radhika. Seema has two Sons Raushan & Manu. What is Raushan to Radhika.(1) Niece (2) Nephew (3) Cousin (4) None of These

Answer»

(2)   Nephew

8.

Which of the following is true about the closed system?(a) Flow system(b) Non flow system(c) Cannot say(d) None of the mentioned

Answer» Right answer is (b) Non flow system

The explanation: Since matter cannot come in or out in a closed system, it is a non-flow system.
9.

Which of the following is true for an open system?(a) Flow system(b) Non flow system(c) Cannot say(d) None of the mentioned

Answer» Right option is (a) Flow system

To explain I would say: Since matter can come in or out in an open system, it is a flow system.
10.

Which of the following does not change in the steady state system?(a) Flow in rate(b) Flow out rate(c) Accumulation(d) None of the mentioned

Answer» Correct option is (c) Accumulation

Easy explanation: In a steady state system accumulation is zero.
11.

In an open system, what is the enthalpy change is heat taken from it is 10 J?(a) 0(b) -10 J(c) 10 J(d) Cannot be determined

Answer» The correct choice is (b) -10 J

For explanation I would say: For an open system, ∆H = Q, => ∆H = -10 J.
12.

Assertion : NH3 is liquidities more easily than CO2. Reason : Critical temperature of NH3 is more than CO2. (1) If both assertion and reason are true and reason is the correct explanation of assertion. (2) If both assertion and reason are true but reason is not the correct explanation of assertion. (3) If assertion is true but reason is false. (4) If both assertion and reason are false.

Answer»

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

13.

Yellow color of chlorine water fades because of(1)  Form HCl & HOCl(2)  Clhorine gas escapes(3)  ClO2 + H2(4)  Cl2O 

Answer»

Correct option  (1) Form HCl & HOCl

Explanation:

Cl2 + H2 HCl + HClO ;

HClO  HCl + [O]

(nascent oxygen responsible for bleaching action)

14.

Assertion : d5 configuration is more stable than d4 Reason : d5 has more exchange energy as compared to d 4 because 10 & 6 exchanges are possible in d5 & d4 respectively.(1)  If both assertion and reason are true and reason is the correct explanation of assertion.(2)  If both assertion and reason are true but reason is not the correct explanation of assertion.(3)  If assertion is true but reason is false.(4)  If both assertion and reason are false

Answer»

Correct option (1)  If both assertion and reason are true and reason is the correct explanation of assertion.

Explanation:

d5 configuration having more symmetry and exchange energy in comparison of d 4 configuration. 

15.

In processing of steel which of the following allotropes of carbon is used.(1) Carbon black(2) Charcoal(3) Coke(4) Graphones 

Answer»

Correct option (3) Coke

Explanation:

Coke is used in processing of steel

16.

Second group anions reacts with(1) dil H2SO4 (2) Conc. H2SO4 (3) dil HCl (4) CH3COOH

Answer»

Correct option (2) Conc. H2SO4

Explanation:

Conc. H2SO4 is group reagent for IInd group 

17.

Assertion : Bromoacetic acid reacts with conc. NaOH to form α-ethoxy acetic acid Reason : It is SN1 mechenism(1) If both assertion and reason are true and reason is the correct explanation of assertion. (2) If both assertion and reason are true but reason is not the correct explanation of assertion. (3) If assertion is true but reason is false. (4) If both assertion and reason are false.

Answer»

(4) If both assertion and reason are false.

18.

Which of the following states is odd one out in terms of International border?(1) Rajasthan (2) Gujarat (3) Punjab (4) Himachal Pradesh

Answer»

(4)  Himachal Pradesh

19.

What product is formed when NH4+ reacts with α-ketoglutaric acid(1) Glutamate (2) Fumarate (3) Pyruvate (4) Glutamine

Answer»

(1) Glutamate

20.

Ph–CH2–CH=CH–CH3 

Answer»

Correct option: 

(3) Ph–CH2–C≡C–CH3

21.

Correct order of basic strength is :(1) iii > ii > iv > i (2) iv > iii > ii > i (3) iii > ii > i > iv (4) iii > i > ii > iv

Answer»

(3) iii > ii > i > iv

22.

'King of Good Times' is associated with.

Answer»

Vijay Mallya.

23.

Which of the following does not give ppt with  CrO4–2 (1) Ca+2 (2) Sr+2 (3) Pb+2 (4) Ba+2

Answer»

Correct option (1) Ca+2

Explanation:

In vth group cation Ca+2 does not give ppt with  CrO–24 has its solubility is high. 

Order of Ksp  BaCrO4 < SrCrO4 < CaCrO4

24.

Find the odd one out with respect to Coastal Line of India.1. Karnataka 2. Odisha 3. Tamilnadu 4. Andhra Pradesh

Answer»

1. Karnataka

25.

3 Fruits Banana, Mango &amp; Orange were available in the ratio 3:4:1. 3 Bananas are removed from the total available fruits &amp; ratio of remaining fruits become 2:4:1. Find the total number of remaining fruits after removing 3 bananas ?

Answer»

The total number of remaining fruits after removing 3 bananas is 21.

26.

What was announced regarding the cross checking of Electronic Voting Machine (EVM) with VVPAT during recent General Elections?

Answer»

Five percent of VVPATs will be cross checked for each Assembly segment.

27.

The 4 letters in a box have certain relationship then what will replace question mark.

Answer»

 K Replace the ? mark.

28.

Identify correct order of increasing ionic radii. (1) Mg2+, Na+, F-, 02-, N3- (2) N3-, 02-, F-, Na+, Mg2+ (3) F-, O2-, N3-, Na+, Mg2+ (4) Mg2+, F-, Na+, O2-, N3-

Answer»

(1) Mg2+, Na+, F-, 02-, N3- 

Species N3- 02- F- T Na+ Mg2+

No. of e- 10 10 10 10 10

Z  7  8  9 11  12 

For isoelectronic specie greater is Z smaller is size of ion.

29.

Find out the products of reaction(1) CH3CO2Na &amp; CH3OH(2) CH3CH2OH + CH3OH(3)  CH3CH2OH &amp; HCO2Na (4)  CH3CO2Na + HCO2Na

Answer»

(3) CH3CH2OH & HCO2Na

30.

Product, Product is :

Answer»

The Correct option is (2)

31.

Assertion : Rayleigh scattering can be considered as elastic collisions of photons with massive particles. Reason: In Rayleigh scattering, the energy of incident and scattered is same (1) If both assertion and reason are true and reason is the correct explanation of assertion. (2) If both assertion and reason are true but reason is not the correct explanation of assertion. (3) If assertion is true but reason is false. (4) If both assertion and reason are false.

Answer»

Correct option (1) If both assertion and reason are true and reason is the correct explanation of assertion.

Explanation:

In Rayleigh scattering, when a photon (of momentum P) collide with a very massive particles (of mass m) (distant particles,…… etc.) then the momentum transferred will be P or 2P so energy transferred is  P2/2m or (P2)/2m which will be very small.

32.

Stability order of following carbocation :(1) i &gt; ii &gt; iii &gt; iv (2) iv &gt; iii &gt; i &gt; ii (3) iv &gt; iii &gt; ii &gt; i (4) iii &gt; iv &gt; ii &gt; i

Answer»

Correct option: (2) iv > iii > i > ii

33.

Correct order of SN2 reaction is :(1) iii &gt; i &gt; ii (2) iii &gt; ii &gt; i (3) i &gt; iii &gt; ii (4) i &gt; ii &gt; iii

Answer»

(4) i > ii > iii

34.

1 J of heat is supplied to the system and 1 kJ of work is done by the system, then the system is which of the following?(a) Steady state(b) Unsteady state(c) Closed(d) None of the mentioned

Answer» Correct option is (b) Unsteady state

For explanation I would say: ∆E = 1 – 1000 = – 999 J, which is not equal to zero, so the system is unsteady state system.
35.

Which of the following is true for isothermal ideal gases?(a) ∆T = 0(b) ∆U = 0(c) ∆H = 0(d) All of the mentioned

Answer» The correct choice is (d) All of the mentioned

To explain I would say: For isothermal ideal gases, ∆T = 0, => ∆U = 0, => ∆H = 0.
36.

Assertion :Phenol reacts with CH3I in presence of NaOH to form methoxybenzene. Reason : Phenoxide is better nucleophile than phenol (1) If both assertion and reason are true and reason is the correct explanation of assertion. (2) If both assertion and reason are true but reason is not the correct explanation of assertion. (3) If assertion is true but reason is false. (4) If both assertion and reason are false.

Answer»

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

37.

Assertion : Propene reacts with HI in presence of peroxide give 1-iodopropane.Reason : 1º free radical is less stable than 2º free radical(1) If both assertion and reason are true and reason is the correct explanation of assertion.(2) If both assertion and reason are true but reason is not the correct explanation of assertion.(3) If assertion is true but reason is false.(4) If both assertion and reason are false.

Answer»

(4) If both assertion and reason are false.

38.

Assertion : Phenol is more acidic then m-methoxy phenolReason : –OCH3 shows +I effect(1) If both assertion and reason are true and reason is the correct explanation of assertion.(2) If both assertion and reason are true but reason is not the correct explanation of assertion.(3) If assertion is true but reason is false.(4) If both assertion and reason are false.

Answer»

(4) If both assertion and reason are false.

39.

Assertion: FM broadcast is better than AM broadcast. Reason: Noise change is maximum in amplitude of AM waves. (1) If both assertion and reason are true and reason is the correct explanation of assertion. (2) If both assertion and reason are true but reason is not the correct explanation of assertion. (3) If assertion is true but reason is false. (4) If both assertion and reason are false.

Answer»

Correct option (1) If both assertion and reason are true and reason is the correct explanation of assertion.

Explanation:

FM broadcast is better than AM broadcast because in AM broadcast electric signals superimpose with main signal.

40.

Which can act as buffer?(a) NH4Cl + NH4OH(b) CH3COOH + CH3COONa(c) 40 mL of 0.1 M NaCN + 20 mL of 0.1 M HCl(d) All of the above

Answer»

Correct option: (d)

Explanation: 

NaCN (4 millimole) and HCl (2 millimole) on reaction give 2 millimole of HCN and 2 millimole of NaCN are left which acts as buffer.

41.

10 J of work and 5 J of heat is supplied to the system, then the system is which of the following?(a) Steady state(b) Unsteady state(c) Closed(d) None of the mentioned

Answer» The correct choice is (b) Unsteady state

For explanation: ∆E = 10 + 5 = 15 J, which is not equal to zero, so the system is unsteady state system.
42.

15 J of heat is supplied to a system and 15 J of work is done on the system, then the system is which of the following?(a) Steady state(b) Unsteady state(c) Closed(d) None of the mentioned

Answer» Correct choice is (b) Unsteady state

For explanation: ∆E = – 15 – 15 = – 30 J, which is not equal to zero, so the system is unsteady state system.
43.

For an open unsteady state system, 5 J of heat was supplied and 10 J of work was done on the system, what is the value of a change in enthalpy?(a) 5 J(b) 10 J(c) 15 J(d) 20 J

Answer» Correct choice is (c) 15 J

The explanation: ∆H = 5 + 10 = 15 J.
44.

15 J of heat and 10 J of work is supplied to a system and 25 J of heat is taken out, then the system is which of the following?(a) Steady state(b) Unsteady state(c) Closed(d) None of the mentioned

Answer» Correct choice is (a) Steady state

The best explanation: ∆E = 15 + 10 – 25 = 0, so the system is steady state system.
45.

For an open unsteady state system, 10 J of heat was supplied and 10 J of work was done by the system, what is the value of a change in enthalpy?(a) 0(b) 10 J(c) 20 J(d) – 20 J

Answer» Right choice is (a) 0

Explanation: ∆H = 10 – 10 = 0.
46.

HNO3 + KCl → KNO3 + Cl2 + NOCI + H2O. Find amount of HNO3 required to make 110 g KNO3(a) 91.5g(b) 56.4g(c) 14.7g(d) 67.2g

Answer»

Correct option is (a) 91.5g

4HNO3 + 3KCI→ 3KNO3 + Cl2 + NOCI + 2H2

3 x 101 g of KNO-4 x 63 g of HNO3

110 g of KNO3 - 4 x 63 x 110 / 3 x 101 = 91.5 g

47.

10 J of heat and 5 J of work is supplied to a system and 20 J of heat is taken out, then the system is which of the following?(a) Steady state(b) Unsteady state(c) Closed(d) None of the mentioned

Answer» The correct answer is (b) Unsteady state

The best explanation: ∆E = 10 + 5 – 20 = – 5 J which is not equal to zero, so the system is unsteady state system.
48.

Name of some compounds are given. Which one is not as per IUPAC system `:`A. `CH_(3)-CH_(2)-CH_(2)-underset(" "CH_(2)CH_(3))underset(|)(CH)-overset(" "CH_(3))overset(|)(CH)-CH_(2)-CH_(3)` `3-` Methyl `-4-` ethyl heptaneB. `CH_(3)-underset(CH_(3))underset(|)(CH)-underset(OH)underset(|)(CH)-CH_(3)" "3-`Methyl`-2-`butanolC. `CH_(3)-CH_(2)-underset(CH_(2))underset(||)(C)-underset(CH_(3))underset(|)(CH)-CH_(3)" "2-`Ethyl`-3-`methyl`-`but`-1-`eneD. `CH_(3)-C-=-underset(CH_(3))underset(|)(CH)-CH_(3)" "4-"Methyl"-2-`pentyne

Answer» Correct Answer - A
`CH_(3)-CH_(2)-CH_(2)-underset(" "CH_(2)CH_(2))underset(|)(CH)-overset(" "CH_(3))overset(|)(CH)-CH_(2)-CH_(3)" "4-` Ethyl `-3-` methyl`-` heptane
49.

The compound `C_(4)H_(10)O` can showA. MetamerismB. Functional isomerismC. Position isomersD. All the above

Answer» Correct Answer - 4
`C_(4)H_(10)O,D.U.=O,` This is saturated compound, so it can be alcohol and ether.
`underset("Butan"-1-ol)(CH_(3)-CH_(2)-CH_(2)-CH_(2)-OH)" "underset("Butan"-2-ol)(CH_(3)-CH_(2)-underset(OH)underset(|)(CH)-CH_(3)),underset("Isobutanol")(CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-OH)`
`CH_(3)-CH_(2)-CH_(2)-O-CH_(3),CH_(3)-CH_(2)-O-CH_(2)-CH_(3)`
So, compound `C_(4)H_(10)O` can show position, functional and metamerism.
50.

Which of the following is not true for maleic acid and fumaric acids?A. Configurational isomersB. Stereo isomersC. Z and E isomersD. Optical isomer

Answer» Correct Answer - 4
`COOH-CH=CH-COOH`
cis form `-` maleic acid and trans form `-` fumaric acid which are configuration geometrical stereo isomers but not optical isomers.