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.

Two moles of an ideal gas (Cp,m=52R) is heated from 300 K to 600 K. Calculate △Sgas, if process is carried out at constant volume:

Answer»

Two moles of an ideal gas (Cp,m=52R) is heated from 300 K to 600 K. Calculate Sgas, if process is carried out at constant volume:

2.

If electron donating group is present in alkyl group then the migration becomes faster and easy or slower and difficult?

Answer» If electron donating group is present in alkyl group then the migration becomes faster and easy or slower and difficult?
3.

11. wave number(according to balmer) and the difference in the energy between two energy states(according ot bohr) have the same formula?What does ths siignify ?

Answer» 11. wave number(according to balmer) and the difference in the energy between two energy states(according ot bohr) have the same formula?What does ths siignify ?
4.

What are the factors affecting evaporation?

Answer» What are the factors affecting evaporation?


5.

The number and type of bonds between two carbon atoms in CaC2 are

Answer»

The number and type of bonds between two carbon atoms in CaC2 are



6.

An organic compound A having the following structure was subjected to monochlorination in the presence of sunlight. The number of monochloroderivatives(including optical isomers) is/are:

Answer» An organic compound A having the following structure


was subjected to monochlorination in the presence of sunlight. The number of monochloroderivatives(including optical isomers) is/are:
7.

Silk is produced by

Answer»

Silk is produced by

8.

the distance between electron and proton in an hydrogen atom is 0.53 angstrom. find the speed and frequency of revolution of electron around the proton?

Answer» the distance between electron and proton in an hydrogen atom is 0.53 angstrom. find the speed and frequency of revolution of electron around the proton?
9.

Which of the following doesn't reduce tollen's solution?CatecholPhenolResorcinolQuinol

Answer» Which of the following doesn't reduce tollen's solution?
Catechol
Phenol
Resorcinol
Quinol
10.

Valence bond theory helps to know about:

Answer»

Valence bond theory helps to know about:


11.

The smallest among the following ions is

Answer»

The smallest among the following ions is




12.

From the following pairs of ions which one is not an iso-electronic pair ?

Answer»

From the following pairs of ions which one is not an iso-electronic pair ?

13.

Why alcohols , vinyl,bicyclo,phenyl carbon. did not give haloform reactions

Answer» Why alcohols , vinyl,bicyclo,phenyl carbon. did not give haloform reactions
14.

Which are true statements among the following ? (A) PH5 and BiCL5 do not exist (B) Bond order of CO−23 is 1.33 (C) SeF4 andCH4 have same shape (D) I+3 has bent geometry (E) The number ofPπ−dπ bonds in SO2 & SO3 are same

Answer»

Which are true statements among the following ?

(A) PH5 and BiCL5 do not exist

(B) Bond order of CO23 is 1.33

(C) SeF4 andCH4 have same shape

(D) I+3 has bent geometry

(E) The number ofPπdπ bonds in SO2 & SO3 are same


15.

Reason for doping of impurities in semiconductors is to

Answer»

Reason for doping of impurities in semiconductors is to



16.

Which of the following hydrolysis product(s) are common in hydrolysis of XeF2 and XeF4 respectively?

Answer»

Which of the following hydrolysis product(s) are common in hydrolysis of XeF2 and XeF4 respectively?

17.

Predict the products of the following reactions: (i) CH3−C|CH3=OHCN−−−→? (ii) C6H5−CH2−CH3(a)KMnO4/KOH−−−−−−−−−−−→(b)H+? (iii) CH3COOHNH3/Δ−−−−→?

Answer» Predict the products of the following reactions:

(i) CH3C|CH3=OHCN−−?

(ii) C6H5CH2CH3(a)KMnO4/KOH−−−−−−−−−−(b)H+?

(iii) CH3COOHNH3/Δ−−−?
18.

17. The wt of 2L nacl solution of density 1.117 g/ ml is

Answer» 17. The wt of 2L nacl solution of density 1.117 g/ ml is
19.

how compound mn2o3 has two oxidation state

Answer» how compound mn2o3 has two oxidation state
20.

Which of the following phenols has the largest pKa value (i.e., least acidic)?

Answer»

Which of the following phenols has the largest pKa value (i.e., least acidic)?

21.

100ml of 1M NaOH is mixed with 50ml of1N KOH solution . What is Normality of mixture?

Answer»

100ml of 1M NaOH is mixed with 50ml of1N KOH solution . What is Normality of mixture?

22.

Ammonium hydroxide is a weak base because

Answer»

Ammonium hydroxide is a weak base because


23.

Which one of the following represent the bond-line structure of isoheptane?

Answer»

Which one of the following represent the bond-line structure of isoheptane?

24.

Write IUPAC names of the following compounds. C6H5−O−C2H5 C6H5−O−C7H15(n−)

Answer»

Write IUPAC names of the following compounds.

C6H5OC2H5

C6H5OC7H15(n)

25.

Which of the following pairs of complexes are isomeric with each other but their aqueous solutions exhibit different molar conductivities?

Answer»

Which of the following pairs of complexes are isomeric with each other but their aqueous solutions exhibit different molar conductivities?


26.

why deltaH is in the formulae of Cp and deltaE is in the Cv

Answer» why deltaH is in the formulae of Cp and deltaE is in the Cv
27.

4. What is the method to find out bond order in case of triatomic or polyatomic species such as carbon di oxide, boron trifluoride?

Answer» 4. What is the method to find out bond order in case of triatomic or polyatomic species such as carbon di oxide, boron trifluoride?
28.

If 2a = 3b = 6c, then the value of c is

Answer» If 2a = 3b = 6c, then the value of c is
29.

For a certain reaction a plot of [(c0-c)/c] against time t, yields a straight line. c0 and c are concentrations of reactant at t = 0 and t = t respectively. The order of reaction is:

Answer» For a certain reaction a plot of [(c0-c)/c] against time t, yields a straight line. c0 and c are concentrations of reactant at t = 0 and t = t respectively. The order of reaction is:
30.

How many atoms of 0.1 gram atom of a radioactive isotope (half life= 5 days) will decay during the 11th day

Answer» How many atoms of 0.1 gram atom of a radioactive isotope (half life= 5 days) will decay during the 11th day
31.

oxidation state of p in P3

Answer» oxidation state of p in P3
32.

what is the meaning of Anti Penultimate shells?

Answer» what is the meaning of Anti Penultimate shells?
33.

Calculate the weight of Iron which will be converted into its oxide by the action of 18 g of steam.Given the reaction : 3Fe+4H2O→Fe3O4+4H2(Atomic mass of Fe=56 g).

Answer» Calculate the weight of Iron which will be converted into its oxide by the action of 18 g of steam.

Given the reaction :

3Fe+4H2OFe3O4+4H2

(Atomic mass of Fe=56 g).
34.

1. For the given eqn, ^°U = -10kJ/mil and ^°S = -45 J/mol : 2A(g) + B(g)2C(g) Then what is the ^°G? I) -11.5 kJ II) -344 kJ III) 0. IV) -2.8 kJ 2. Heat of sublimation of Na is x J Ionisation energy of Na is y J Bond dissociation energy of Cl2 is aJ e gain enthalpy of Cl is -b J Enthalpy of formation of NaCl is -c J Then what is the lattice energy of NaCl(s) ?

Answer» 1. For the given eqn, ^°U = -10kJ/mil and ^°S = -45 J/mol : 2A(g) + B(g)2C(g) Then what is the ^°G? I) -11.5 kJ II) -344 kJ III) 0. IV) -2.8 kJ 2. Heat of sublimation of Na is x J Ionisation energy of Na is y J Bond dissociation energy of Cl2 is aJ e gain enthalpy of Cl is -b J Enthalpy of formation of NaCl is -c J Then what is the lattice energy of NaCl(s) ?
35.

Maximum value of cosx1 + 2cosx2 + 3cosx3 is-

Answer» Maximum value of cosx1 + 2cosx2 + 3cosx3 is-
36.

Write a brief note on electrons.

Answer» Write a brief note on electrons.
37.

The reaction N2O4 (g) ⇌ 2NO2 (g) is carried out at 298 K and 20 bar. Five moles of each of N2O4and NO2, are taken initially. Given: ΔfG∘ (N2O4) = 100 kJ mol−1 and ΔfG∘ (NO2) = 50 kJ mol−1.Choose the appropriate option: The values of ΔG and K∘p at 298 K are:

Answer»

The reaction N2O4 (g) 2NO2 (g) is
carried out at 298 K and 20 bar. Five moles of each of N2O4and
NO2, are taken initially. Given: ΔfG
(N2O4) = 100 kJ mol1 and ΔfG
(NO2) = 50 kJ mol1.Choose the appropriate option: The values of
ΔG and Kp at 298 K are:


38.

34.no is a neutral ligand or a positive ligand

Answer» 34.no is a neutral ligand or a positive ligand
39.

When formaldehyde is treated with methanol in presence of dry HCI gas or fused CaC2, it yields: (a) acetaldehyde (b) mercaptal (c) methylal D (d) dimethyl ether

Answer» When formaldehyde is treated with methanol in presence of dry HCI gas or fused CaC2, it yields: (a) acetaldehyde (b) mercaptal (c) methylal D (d) dimethyl ether
40.

Three atoms of magnesium combine with 2 atoms of nitrogen. What will be the weight of magnesium which combines with 1.86 g of nitrogen

Answer»

Three atoms of magnesium combine with 2 atoms of nitrogen. What will be the weight of magnesium which combines with 1.86 g of nitrogen

41.

The wave function ψ in the Schrodinger wave equation represents

Answer»

The wave function ψ in the Schrodinger wave equation represents



42.

Carbon monoxide is allowed to expand isothermally and reversibly from 15 m3 to 30 m3 at 300 K and work obtained is 8.595 kJ. Calculate the number of moles of carbon monoxide. Take R = 8.3 J K−1mol−1 and ln2 = 0.69

Answer»

Carbon monoxide is allowed to expand isothermally and reversibly from 15 m3 to 30 m3 at 300 K and work obtained is 8.595 kJ. Calculate the number of moles of carbon monoxide. Take R = 8.3 J K1mol1 and ln2 = 0.69

43.

What is regular surface?

Answer» What is regular surface?
44.

The disappearance of the characteristic purple colour of KMnO4 in its reaction with an alkene is the test for unsaturation. It is known as

Answer» The disappearance of the characteristic purple colour of KMnO4 in its reaction with an alkene is the test for unsaturation. It is known as
45.

The suitable reagent for the following conversion?i.e. CH3−C≡C−CH3R⟶trans-alkene:

Answer»

The suitable reagent for the following conversion?

i.e. CH3CCCH3Rtrans-alkene:

46.

solve for x ; log2log1/2log3x >0

Answer» solve for x ; log2log1/2log3x >0
47.

Who suggested the distribution of electrons into different shells? How are the electrons distributed across these shells?

Answer» Who suggested the distribution of electrons into different shells? How are the electrons distributed across these shells?
48.

The correct order of decreasing acidic strength of oxyacids of group 15 element is(1) HNO HSbOg > H3ASO4 > H3PO(3) HNO HPO > HzAsO4 > H,SbO(2) H3PO4> H3AS04 H3SbO4 HNO3H3SBOH3ASO(4) HNO3 H3ASO4 > H3PO4> H3SbO4H2SbO4

Answer» The correct order of decreasing acidic strength of oxyacids of group 15 element is(1) HNO HSbOg > H3ASO4 > H3PO(3) HNO HPO > HzAsO4 > H,SbO(2) H3PO4> H3AS04 H3SbO4 HNO3H3SBOH3ASO(4) HNO3 H3ASO4 > H3PO4> H3SbO4H2SbO4
49.

What is the difference between Arachidic acid and Arachidonic acid

Answer» What is the difference between Arachidic acid and Arachidonic acid
50.

Total number of optically active isomer of 2,3dibromopentane

Answer» Total number of optically active isomer of 2,3dibromopentane