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.

George, ______ speaks German, applied the job. A) whom B) that C) who D) whose

Answer»

Correct option is C) who

2.

____ do you write to about the job? A) What B) Why C) Whom D) When

Answer»

Correct option is C) Whom

3.

“Family album” is ___ than “Follow me”. A) interesting B) most interesting C) more interesting D) the most interesting E) as interesting

Answer»

Correct option is C) more interesting

more interesting
4.

She showed me some pictures ____ were very interesting. A) that B) all C) their D) they

Answer»

Correct option is A) that

5.

Kathy is wearing a hat ____ is red. A) it B) so C) that D) such

Answer»

Correct option is C) that

6.

I am not ____ to vote. A) very old B) old enough C) enough old D) old for

Answer»

Correct option is B) old enough

7.

“Don’t eat those cherries, they are poisonous,” said David. David _______ not to eat those cherries because they were poisonous. A) didn’t want me B) said to me that C) warned me D) suggested that

Answer»

Correct option is C) warned me

8.

“Please give me a pain killer.” the patient said. The patient begged the nurse _______ a pain killer. A) to give her B) she would give her C) she would give me D) to give me

Answer»

Correct option is A) to give her

9.

One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be1. 80°C2. more than 50°C but less than 80°C3. 20°C4. between 30°C and 50°C5.

Answer» Correct Answer - Option 4 : between 30°C and 50°C

The correct answer is between 30°C and 50°C.

10.

Define shape selective catalysis. Name the Zeolite catalyst used to convert alcohols to gasoline in petroleum industry.

Answer»

The catalytic reaction that depends upon the pore structure of the catalyst and the size of the reactant and product molecules is called shape-selective catalysis. HZSM – 5 is the Zeolite Catalyst used to convert alcohols to gasoline in petroleum industry.

11.

You went to a 5 star hotel for dinner. What is provided by the 5 star hotel ‘goods’ or ‘service,’? Explain any two characteristics of Services.

Answer»

Service : 

Because service is a deed, a performance and an effort. 

Characteristics of services: 

1. Intangibility 

2. Simultaneity 

3. Heterogeneity 

4. Perishability 

5. Non-Ownership

12.

Which of the following statements is not true regarding rayon?A. it is pure regenerated celluloseB. it is obtained by dissolving wood pulp in alkaline `CS_(2)`C. it is obtained by passing Na- salt of cellulose Xanthate through spinneret into aqueous `NaHCO_(3)` solution.D. it is extracted as fibres of cellulose.

Answer» Correct Answer - B
Wood pulp, on dissolving in `CS_(2)---` alkali solution forms sodium salt of cellulose xanthate not the rayon.
13.

If a metal with atomic mass 209 crystallizes in a simple cubic lattice what is the edge length of its unit cell. (Given d = 91.5 kg m-3).

Answer»

As we know,

density 'd' = \(\frac{ƵM}{a^3N_A}\)

a3 = \(\frac{1\times209 g/mol}{6.022\times10^{23}\times91.5 \times 10^3 g/m^3}\)

a3 = 0.3793 x 10-26 m3

a3 = 3.793 x 10-27 m3

a = 1.5595 x 10-9 m

a = 1.56 x 10-9 m

14.

Calculate the value of ΔrG0 at 298 K for the cell reaction. 3Mg(s) + 2Al3+aq → 3Mg2+aq + 2Al(s) [Given; EoMg = -2.36 V, EEoAl = -1.66 V and F = 96487 C]

Answer»

E0cell = E0Al – E0Mg 

= -1.66 – (-2.36) = 0.7v 

ΔG0 = -nE0

= -6 × 0.7 × 96487 

= 405.24KJ

15.

What is Frenkel defect? What is its effect on the density of a solid?

Answer»

The dislocation of cation (small size) from its normal site to an interstitial site is called Frenkel defect. During Frenkel defect the density of the crystal does not change.

16.

Write the equations for the reactions taking place at anode and cathode in the lead-storage battery.

Answer»

Anode: 

Pb(s) + SO42-(aq) → PbSO4(s) + 2e 

Cathode: 

PbO2(s) + SO42-(aq) + 4H+(aq) + 2e → PbSO4 (s) + 2H4O(l)

17.

Choose the correct form of the verb that agrees with the subject:The two boys ...... (was/were) seated at the bedside of a beautiful girl. She ..... (was/were) listening to their chatter. She ..... (was/were) wearing a pretty lace jacket.

Answer»

were, was, was.

18.

Identify the subject and the predicate in the following sentences. 1. The sun was shining brightly.2. The dogs were barking loudly.3. The pretty girl was wearing a blue frock.4. My younger brother serves in the army5. The man and his wife were working in their garden.

Answer»

1. The sun (subject) / was shining brightly (predicate).

2. The dogs (subject) / were barking loudly (predicate).

3. The pretty girl (subject) / was wearing a blue frock (predicate).

4. My younger brother (subject) / serves in the army (predicate).

5. The man and his wife (subject) / were working in their garden (predicate).

19.

Use a formula to multiply : i. (x – 5)(x + 5) ii. (2a – 13)(2a + 13) iii. (4z – 5y)(4z + 5y) iv. (2t – 5)(2t + 5)

Answer»

i. Here, a = x and b = 5 

(x – 5)(x + 5) = (x)2 – (5)2

…. [(a + b)(a – b) = a2 – b2

= x2 – 25

ii. Here, A = 2a and B = 13 

(2a – 13)(2a + 13) = (2a)2 – (13)2 

…. [(A + B)(A – B) = A2 – B2

= 4a2 – 169

iii. Here, a = 4z and b = 5y 

(4z – 5y)(4z + 5y) = (4z)2 – (5y)2 

…. [(a + b)(a – b) = a2 – b2

= 16z2 – 25y2 

iv. Here, a = 2t and b = 5 

(2t – 5)(2t + 5) = (2t)2 – (5)2 

…. [(a + b)(a – b) = a2 – b2

= 4t2 – 25

20.

The determination of molar mass from elevation in boiling point is called as _______. (A) cryoscopy (B) colorimetry (C) ebullioscopy (D) spectroscopy

Answer»

(C) ebullioscopy

21.

She ________ the bus every day. A) taking B) takes C) is taking D) take

Answer»

Correct option is B) takes

22.

That book is not Helen’s. It is ________ . A) her B) my C) his D) them

Answer»

Correct option is C) his

23.

Solve the following equations : i. 4(x + 12) = 8 ii. 3y + 4 = 5y – 6

Answer»

i. 4(x + 12) = 8 

∴ 4x + 48 = 8 

∴ 4x + 48 – 48 = 8 – 48

….(Subtracting 48 from both sides) 

∴ 4x = -40

∴ \(x = \frac{-40}{4}\)

∴ x = -10

ii. 3y + 4 = 5y – 6 

∴ 3y + 4 + 6 = 5y – 6 + 6 

….(Adding 6 on both sides) 

∴ 3y + 10 = 5y 

∴ 3y + 10 – 3y = 5y – 3y 

….(Subtracting 3y from both sides) 

∴ 10 = 2y 

∴ 2y = 10

∴ y = 10/2

∴ y = 5

24.

Which of the following species has the largest bond angle?A. `NH_(4)^(+)`B. `NO_(2)^(+)`C. `NO_(2)^(-)`D. `NO_(3)^(-)`

Answer» Correct Answer - B
The N atom in `NO_(2)^(+)` undergoes sp-hybridization with bond angle `180^(@)`.
25.

How many electron(s) is/are present in 1.8 mL of water (density =1g/mL)?A. `0.1xx6.023xx10^(23)`B. `10xx6.023xx10^(23)`C. `6.023xx10^(23)`D. `1.8xx10xx6.023xx10^(23)`

Answer» Correct Answer - C
Mass of 1.8 mL water `=1.8xx1=1.8g`
No. of moles `=(1.8)/(18)=0.1`
One molecule of `H_(2)O` contains 10 electrons.
`therefore` No. of electrons of 0.1 mole `=0.1xx10=1"mole"=6.023xx10^(23)`
26.

If the radius of first orbit of hydrogen atom is `a_(0)`, which of the following cannot be the radius of any other orbits of hydrogen?A. `4a_(0)`B. `6a_(0)`C. `9a_(0)`D. `16a_(0)`

Answer» Correct Answer - B
`r_(n)=n^(2)a_(0)` for H-atom
27.

Amongst the following, total no of aromatic compounds areA. 5B. 4C. 3D. 6

Answer» Correct Answer - B
Structure containing a ring of `(4n+2)pie^(-)`s is aromatic.
28.

What is the equivalent weight of reductant in the given redox reaction, `Cu_(2)S+(5)/(2)O_(2)rarr2CuO+SO_(3)`A. `(M)/(5)`B. `(M)/(8)`C. `(M)/(10)`D. `(M)/(4)`

Answer» Correct Answer - C
29.

The IUPAC name of `:-`A. `1-`methylethylcyclobutaneB. 3-(propyl) cyclobutaneC. 2-(propyl) cyclobutaneD. 2-Cuclobutyl-propane

Answer» Correct Answer - A
30.

IUPAC name is `NC-CH_(2)-CH_(2)-CONH_(2):-`A. 4-cyanobutane carboxamideB. 3-emidopropanoic acidC. 3-cyanopropanamideD. 3-cyanopropan-1-oxo-1-amine

Answer» Correct Answer - C
31.

Calculate the volume of `O_(2)` and volume of air needed for combustion of `1 kg` carbon at `STP`.A. 9333.3 litreB. 933.33 litreC. 93.33 litreD. 1866.67 litre

Answer» Correct Answer - A
`C + O_(2) to co_(2) `
1000g
`(1000)/(2)` mole
`n_(O)_(2)` req. `=(1000)/(2)` mole
`air _(req). = (1000)/(12)xx(1)/(0.21)` mole
`(1000)(12xx0.21)xx22.4L`
=8888.8 L
32.

`3-`Ethyl`-2-`Hydroxy`-4-`methylhex`-3-`en`-3-`en`-5-`ynoic acid`:-`A. B. C. D.

Answer» Correct Answer - B
33.

A compound made of two elements A and B is found to contains 25% A (atomic mass 12.5) and 75% B (atomic mass 37.5). The simplest formula of the the compound is :-A. ABB. `A_(2)B_(2)`C. `AB_(3)`D. `A_(3)B`

Answer» Correct Answer - A
`{:(A,B),(25,75),((25)/(12.5),(75)/37.5):}`
34.

Which has the maximum number of molecules among the following ?A. `44 g CO_(2)`B. `48 g O_(3)`C. `8 g H_(2)`D. `64 g SO_(2)`

Answer» Correct Answer - A
35.

`CaCO_(3)` +` 2HCI to CaCI_(2)` + `CO_(2)`+ `H_(2)O` what will be the amount of `CaCI_(2)` when 10 g` CaCO_(3)` mL 0.75 M HCI is used in the reaction ?A. 83.25 gB. 16.65 gC. 11.1 gD. 8.325 g

Answer» Correct Answer - D
`CaCO_(3)+2HCI to CACI_(2)+CO_(2)+CO_(2)+H_(2)O`
10 g `(200xx0.25)/(1000) `
`0.1"mol"underset(("Imiting reagment"))(0.15"mol")`
`n_(CaCI_(2))` formed `= (0.15)/(2)`
`W_(CaCI_(2))=(0.15)/(2)xx111=8.325` g
36.

IUPAC name of out of the following I,II and III is `:-` `(I)` `N,N,2-`Trimethylpropan`-1-`amine `(II)` `2-Methyl-N,N-`dimethylpropan`-1`amine `(III)` `2,N,N-`Trimethyl propan`-1-`amine.A. IB. IIC. Both (I) and (II)D. All (I),(II) and (III)

Answer» Correct Answer - C
37.

20.0 kg of `N_(2(g))` and 3.0 kg of `H_(2(g))` are mixed to produce `NH_(3(g))`. The amount of `NH_(3(g))` formed is :-A. 17 kgB. 34 kgC. 20 kgD. 3 kg

Answer» Correct Answer - A
38.

The compount may be named as `:-`A. 3-Ethyl-2-methyl oxiraneB. 1,2.-epoxy-2-methylbutaneC. 1,2 oxapentaneD. 2-Methyl-2-buraoxide

Answer» Correct Answer - B
39.

Assertion`:-` Addition of inert gas at const pressure to equilibrium of `PCl_(5)hArrPCl_(3)+Cl_(2)` favourd forward reaction. Reason`:-` `K_(c)=(alpha^(2))/((1-prop)V)` for the equilibrium of `PCl_(5)hArrPCl_(3)+Cl_(2)`A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False

Answer» Correct Answer - B
40.

Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 atm and `373K` is zero. Reason: For all isothermal processes `DeltaE=0` .A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False

Answer» Correct Answer - D
41.

Mohr's salt is simple or complex ion or complex salt or double salt

Answer»

Mohr's salt is complex ion

42.

What sequence on the template strand of dna corresponds to the first amino acid inserted into a protein ?

Answer» TAC sequence
43.

What is the inclination of the line y=x

Answer» 45 degrees

Because it will be a straight line passing through origin of the Cartesian plane
44.

Assertion:The change in entropy during melting of ice is negligible in comparison to change in entropy during vaporisation. Reason:The volume occupied by solid and liquids is too less in comparison to volume occupied by gas.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False

Answer» Correct Answer - A
45.

Give the correct iupac name of the following compound 

Answer» Not sure but it might be crt .

5-cyano - 3-ethyl- ( N - ethyl) Hexanamide
46.

The correct decreasing order of ionic size among the following species is `K^+, Cl^-, S^-2` and `Ca^(+2)`.A. `Ca^(+2) gt K^+ gt Cl^(-) gt S^-2`B. `K^+ gt Ca^(+2) gt Cl^(-) gt S^-2`C. `S^-1 gt Cl^(-) gt K^(+) gt Ca^(+2)`D. `S^-2 gt Cl^(-) gt Ca^(+2) gt K^+`

Answer» Correct Answer - C
`(Z)/(e^-)` is in the order `S^-2 gt Cl^(-) gt K^+ gt Ca^(+2)`.
47.

One mole of symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass `58`. The alkeneA. 1-ButeneB. 3-hexeneC. 2-hexeneD. 3-pentene

Answer» Correct Answer - B
`CH_3 - CH_2 - CH = CH - CH_2 - CH_3 overset(O_3) underset(Z_n + H_2)rarr 2 CH_3 CH_2 CHO`
Molar mass of `CH_3 CH_3 CHO = 58 u`.
48.

The reaction proceeds through _____.A. Electrophilic additionB. Nucleophilic additionC. Free radical additionD. Electrophilic subsitution

Answer» Correct Answer - A
Alkenes usually undergoe electrophilic addition reaction.
49.

The Gibbs energy for the decomposition of `FeO` at `600^@ C` is as follows `FeO rarr Fe + (1)/(2) O_2 Delta_r G = 856 kJ//"mole"` the potential difference needed for electrolytic reduction of `FeO` at `600^@ C` is at least.A. `-3.6 V`B. `-4.73 V`C. `-5.2 V`D. `-4.42 V`

Answer» Correct Answer - D
`Delta G = - nFE`
`E = (-856 xx 10^3)/(2 xx 96500)`
`E = -4.43 V`.
50.

A sulphide of a metal `(M)` with formula `MS` is white coloured ppt which is soluble in acidic solution `(PH lt 6)`. Metal cation M is:A. `Pb^(2+)`B. `Zn^(2+)`C. `Hg^(2+)`D. `Cu^(2+)`

Answer» Correct Answer - B
`ZnS` is white coloured ppt which is soluble in acidic solution below `pH = 6`