46295 + Interview Questions in Chemistry

1.	A 0.1m3 adiabatic rigid container is divided into two equal volumes by a thin membrane. Initially. one of these chamber is filled with air at 700 kPa and 37∘C while the other camber is evacuated. The change in entrooy of the system when the wall is ruptured, is
Answer» A $0.1 m^{3}$ adiabatic rigid container is divided into two equal volumes by a thin membrane. Initially. one of these chamber is filled with air at 700 kPa and $37^{\circ} C$ while the other camber is evacuated. The change in entrooy of the system when the wall is ruptured, is

Discussion

2.	degree of dissociation of0.66M solution of an acid HA is 0.015. what would be the degree of dissociayion of 0.02 M solution pf the acid at same tempertature
Answer» degree of dissociation of0.66M solution of an acid HA is 0.015. what would be the degree of dissociayion of 0.02 M solution pf the acid at same tempertature

Discussion

3.	6.Structure of freon 112?
Answer» 6.Structure of freon 112?

Discussion

4.	43.The Total number of monochloride obtained by chlorination of neohexane is (1) if excluding stereoisomer (2) including stereoisomer
Answer» 43.The Total number of monochloride obtained by chlorination of neohexane is (1) if excluding stereoisomer (2) including stereoisomer

Discussion

5.	Show that N2O,NO2,NO illustrate law of multiple proportions
Answer» Show that N2O,NO2,NO illustrate law of multiple proportions

Discussion

6.	find the total number of enantiomers of \lbrack M(en)ab_3\rbrack where en represents ethylene 1,2 diammine.
Answer» find the total number of enantiomers of \lbrack M(en)ab_3\rbrack where en represents ethylene 1,2 diammine.

Discussion

7.	Two liquids 'A' and 'B' have vapour pressure (in pure state) in the ratio p∘A:p∘B=1:3 at a certain temperature. Assume 'A' and 'B' form an ideal solution and the ratio of mole fractions of 'A' to 'B' in the vapour phase is 4 : 3. The the mole fraction of 'B' in the solution at the same temperature is:
Answer» Two liquids 'A' and 'B' have vapour pressure (in pure state) in the ratio $p_{A}^{\circ} : p_{B}^{\circ} = 1 : 3$ at a certain temperature. Assume 'A' and 'B' form an ideal solution and the ratio of mole fractions of 'A' to 'B' in the vapour phase is 4 : 3. The the mole fraction of 'B' in the solution at the same temperature is:

Discussion

8.	in ab3 anions b are present in ccp structure and cation a is present in octahedral void the percentage of octahedral void occupied is a. 25% b. 33% c. 50% d. 67
Answer» in ab3 anions b are present in ccp structure and cation a is present in octahedral void the percentage of octahedral void occupied is a. 25% b. 33% c. 50% d. 67

Discussion

9.	State a condition under which a bimolecular reaction is kinetically first order reaction.
Answer» State a condition under which a bimolecular reaction is kinetically first order reaction.

Discussion

10.	1 L of 0.1 M NaOH, 1 L of 0.2 M KOH, and 2 L of 0.05 M Ba(OH)2 are mixed together. The final concentration of the solution is
Answer» 1 L of 0.1 M NaOH, 1 L of 0.2 M KOH, and 2 L of 0.05 M Ba(OH)2 are mixed together. The final concentration of the solution is

Discussion

11.	Burst the bubbles that contain an Arrhenius base.
Answer» Burst the bubbles that contain an Arrhenius base.

Discussion

12.	An amount of 1.00 g of a gaseous compound of boron and hydrogen occupies 0.820 litre at 1.00 atm and at 3∘C. The compound is (R=0.0820 L atm mol−1K−1, Atomic weight: H = 1.0, B = 10.8)
Answer» An amount of 1.00 g of a gaseous compound of boron and hydrogen occupies 0.820 litre at 1.00 atm and at $3^{\circ} C .$ The compound is ( $R = 0.0820 L$ atm mol $^{- 1} K^{- 1}$ , Atomic weight: H = 1.0, B = 10.8)

Discussion

13.	Why 10 wire potentiometer is more sensitive than 4 wire potentiometer? Also give another way to increase the sensitivity of potentiometer .
Answer» Why 10 wire potentiometer is more sensitive than 4 wire potentiometer? Also give another way to increase the sensitivity of potentiometer .

Discussion

14.	When benzene sulphonic acid and p-nitrophenol is treated with NaHCO3, the gases released respectively are:
Answer» When benzene sulphonic acid and p-nitrophenol is treated with NaHCO₃, the gases released respectively are:

Discussion

15.	difference between induced charge and inducing charge
Answer» difference between induced charge and inducing charge

Discussion

16.	Alpha hydrogen how seen
Answer» Alpha hydrogen how seen

Discussion

17.	The component of the magnetic field along the line OP at the point P due to themoment 1.732 Am2 is90Magnetism and Matter4.1 m30^° ON(2) 107 T(4) 2.310-7 T0(1) 3 x 10-7 T(3) 3x10-71The magnetic moment of a shorth5.
Answer» The component of the magnetic field along the line OP at the point P due to themoment 1.732 Am2 is90Magnetism and Matter4.1 m30^° ON(2) 107 T(4) 2.310-7 T0(1) 3 x 10-7 T(3) 3x10-71The magnetic moment of a shorth5.

Discussion

18.	When 3.00 mole of A and 1.00 mole of B are mixedin a 1.00 litre vessel, the following reaction takesplaceA(g) + B(g) 2C(g)The equilibrium mixture contains 0.5 mole of C.What is the value of equilibrium constant for thereaction?9 (z)(4) None of these(1) 0.128(3) 1.5
Answer» When 3.00 mole of A and 1.00 mole of B are mixedin a 1.00 litre vessel, the following reaction takesplaceA(g) + B(g) 2C(g)The equilibrium mixture contains 0.5 mole of C.What is the value of equilibrium constant for thereaction?9 (z)(4) None of these(1) 0.128(3) 1.5

Discussion

19.	Consider the following PV diagram. AB is an isothermal process during which the temperature is 400 K. BC is an isochoric process and CA is an adiabatic process. If 1 mole of diatomic gas undergoes the cycle, then find the total work done by the gas. [ln 2=0.7]
Answer» Consider the following $P V$ diagram. $AB$ is an isothermal process during which the temperature is $400 K$ . $BC$ is an isochoric process and $CA$ is an adiabatic process. If $1 mole$ of diatomic gas undergoes the cycle, then find the total work done by the gas. $[ln 2 = 0.7]$

Discussion

20.	What is the work done by 0.2 mole of a gas at room temperature to double its volume during isobaric process? (Take R=2 cal/mol°C)Where there is Celcius in unit of R? Shouldn't it be Kelvin?
Answer» What is the work done by 0.2 mole of a gas at room temperature to double its volume during isobaric process? (Take R=2 cal/mol°C) Where there is Celcius in unit of R? Shouldn't it be Kelvin?

Discussion

21.	A regular hexagonal prism has the surface area S .The largest volume of the prism is
Answer» A regular hexagonal prism has the surface area $S$ .The largest volume of the prism is

Discussion

22.	24. Ratio of magnetic moments of fe3+ and co2+ is
Answer» 24. Ratio of magnetic moments of fe3+ and co2+ is

Discussion

23.	The structure of a mixed oxide is cubic closed packed (ccp). The cubic unit cell of mixedoxide is composed of oxide ions. One fourth of the tetrahedral voids areoccupied by divalent mtal A and the octahedral voids are occupied by amonovalent metal B. The formula of the oxide is:
Answer» The structure of a mixed oxide is cubic closed packed (ccp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent mtal A and the octahedral voids are occupied by a monovalent metal B. The formula of the oxide is:

Discussion

24.	Which of the following compound does not react by SN1 mechanism. ?
Answer» Which of the following compound does not react by $S N^{1}$ mechanism. ?

Discussion

25.	Which of the following triads belongs to transition elements?
Answer» Which of the following triads belongs to transition elements?

Discussion

26.	Maximum pKb value is for
Answer» Maximum pK_bvalue is for

Discussion

27.	96.An ideal solution was found to have a vapour pressure of 80 torr when the mole fraction of a non-volatile solute was 0.2. What would be vapour pressure of the pure solvent at the same temperature ? (1) 64 torr (2) 80 torr (3) 100 torr (4) 400 torr
Answer» 96.An ideal solution was found to have a vapour pressure of 80 torr when the mole fraction of a non-volatile solute was 0.2. What would be vapour pressure of the pure solvent at the same temperature ? (1) 64 torr (2) 80 torr (3) 100 torr (4) 400 torr

Discussion

28.	Which one of the following ions has the highest value of ionic radius
Answer» Which one of the following ions has the highest value of ionic radius

28.

Which one of the following ions has the highest value of ionic radius

Answer»

Which one of the following ions has the highest value of ionic radius

Discussion

29.	The freezing point of an aqueous solution having 6%urea and18%glucose by weight is if kf water is 1.86K kg/mole
Answer» The freezing point of an aqueous solution having 6%urea and18%glucose by weight is if kf water is 1.86K kg/mole

Discussion

30.	How to identify diastereomers and enantiomers?
Answer» How to identify diastereomers and enantiomers?

Discussion

31.	what is meta centre and poiseuille's equation?
Answer» what is meta centre and poiseuille's equation?

Discussion

32.	How many electrons have the values n = 2, l = 1 and in the configuration 1s22s22p3?Options:Should have chosen 1Wrong 357
Answer» How many electrons have the values n = 2, l = 1 and in the configuration 1s22s22p3? Options: Should have chosen 1 Wrong 3 5 7

Discussion

33.	A Metal salt [X] is reacted with Barium chloride which forms a white precipitate and that is insoluble in conc. HCl. Find X
Answer» A Metal salt [X] is reacted with Barium chloride which forms a white precipitate and that is insoluble in conc. HCl. Find X

Discussion

34.	which is thermally more stable, Nacl or KCl ? Why ?
Answer» which is thermally more stable, Nacl or KCl ? Why ?

Discussion

35.	The ratio of and bonds present in the monomer of polyacrylonitrile is Options: Should have chosen 2 : 1 1 : 2 Wrong 3 : 1 1 : 3
Answer» The ratio of and bonds present in the monomer of polyacrylonitrile is Options: Should have chosen 2 : 1 1 : 2 Wrong 3 : 1 1 : 3

Discussion

36.	The pressure needed to confine 1.5 mole of N2 molecules to 28 L flask is 1.0 bar. Thus, root mean square velocity of the gas (assuming ideal behaviour) is
Answer» The pressure needed to confine 1.5 mole of $N_{2}$ molecules to 28 L flask is 1.0 bar. Thus, root mean square velocity of the gas (assuming ideal behaviour) is

Discussion

37.	34. In A3(g) gives 3A (g) reaction, the intial concentration of A3 is &quota&quotmol L . If x is the degree of dissociation of A3. The total no. Of miles at equilibrium will be
Answer» 34. In A3(g) gives 3A (g) reaction, the intial concentration of A3 is "a"mol L . If x is the degree of dissociation of A3. The total no. Of miles at equilibrium will be

Discussion

38.	Replace le, la, les by un, une, des.1. le raisin2. les fruits3. la pêche4. le légume5. les tomates
Answer» Replace le, la, les by un, une, des. 1. le raisin 2. les fruits 3. la pêche 4. le légume 5. les tomates

Discussion

39.	how many alkyl group can be formed from normal butane?
Answer» how many alkyl group can be formed from normal butane?

Discussion

40.	Explain hybridisation of so2. By molecular orbital theory.
Answer» Explain hybridisation of so2. By molecular orbital theory.

Discussion

41.	How to identify what will be the products just by seeing the reactants
Answer» How to identify what will be the products just by seeing the reactants

Discussion

42.	23. In the reaction Fe2S3 > Fe2SO4 + SO2 What is the equivalent mass of Fe2S3?
Answer» 23. In the reaction Fe2S3 > Fe2SO4 + SO2 What is the equivalent mass of Fe2S3?

Discussion

43.	Electrolysis of dilute and concentrated sulphuric acid and also electrolysis of 50% of sulphuric acid
Answer» Electrolysis of dilute and concentrated sulphuric acid and also electrolysis of 50% of sulphuric acid

Discussion

44.	A solid element burns completely in oxygen to give gaseous oxide without any change in volume. if the vapour density of oxide is 32, the equivalent weight would be?
Answer» A solid element burns completely in oxygen to give gaseous oxide without any change in volume. if the vapour density of oxide is 32, the equivalent weight would be?

Discussion

45.	9. Which of the following has the same no of s electron as the d electron in Fe^{+2} A=li (b=)=ca (c)=N (d)=p
Answer» 9. Which of the following has the same no of s electron as the d electron in Fe^{+2} A=li (b=)=ca (c)=N (d)=p

Discussion

46.	Acetamide changes into methylamine by
Answer» Acetamide changes into methylamine by

Discussion

47.	air contain 20% o2 by volume. How many cc of air wi be required for oxidation of 100 cc of acelylene.
Answer» air contain 20% o2 by volume. How many cc of air wi be required for oxidation of 100 cc of acelylene.

Discussion

48.	Question 10If bromine atom is available in the form of, say, two isotopes 7935Br (49.7%) and 8135Br(50.3%), calculate the average atomic mass of bromine atom.
Answer» Question 10 If bromine atom is available in the form of, say, two isotopes $_{35}^{79}$ Br (49.7%) and $_{35}^{81}$ Br(50.3%), calculate the average atomic mass of bromine atom.

Discussion

49.	38.A substance of mass M kg requires input of P watts to remain in the molten state at its molten state at its melting point when the power is turned off, the sample completely solidifies in time t sec . What is the latent heat of fission of the substance?
Answer» 38.A substance of mass M kg requires input of P watts to remain in the molten state at its molten state at its melting point when the power is turned off, the sample completely solidifies in time t sec . What is the latent heat of fission of the substance?

Discussion

50.	The complex showing a spin-only magnetic moment of 2.82 B.M. is
Answer» The complex showing a spin-only magnetic moment of 2.82 B.M. is

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

A 0.1m3 adiabatic rigid container is divided into two equal volumes by a thin membrane. Initially. one of these chamber is filled with air at 700 kPa and 37∘C while the other camber is evacuated. The change in entrooy of the system when the wall is ruptured, is

degree of dissociation of0.66M solution of an acid HA is 0.015. what would be the degree of dissociayion of 0.02 M solution pf the acid at same tempertature

6.Structure of freon 112?

43.The Total number of monochloride obtained by chlorination of neohexane is (1) if excluding stereoisomer (2) including stereoisomer

Show that N2O,NO2,NO illustrate law of multiple proportions

find the total number of enantiomers of \lbrack M(en)ab_3\rbrack where en represents ethylene 1,2 diammine.

in ab3 anions b are present in ccp structure and cation a is present in octahedral void the percentage of octahedral void occupied is a. 25% b. 33% c. 50% d. 67

State a condition under which a bimolecular reaction is kinetically first order reaction.

1 L of 0.1 M NaOH, 1 L of 0.2 M KOH, and 2 L of 0.05 M Ba(OH)2 are mixed together. The final concentration of the solution is

Burst the bubbles that contain an Arrhenius base.

An amount of 1.00 g of a gaseous compound of boron and hydrogen occupies 0.820 litre at 1.00 atm and at 3∘C. The compound is (R=0.0820 L atm mol−1K−1, Atomic weight: H = 1.0, B = 10.8)

Why 10 wire potentiometer is more sensitive than 4 wire potentiometer? Also give another way to increase the sensitivity of potentiometer .

When benzene sulphonic acid and p-nitrophenol is treated with NaHCO3, the gases released respectively are:

difference between induced charge and inducing charge

Alpha hydrogen how seen

The component of the magnetic field along the line OP at the point P due to themoment 1.732 Am2 is90Magnetism and Matter4.1 m30^° ON(2) 107 T(4) 2.310-7 T0(1) 3 x 10-7 T(3) 3x10-71The magnetic moment of a shorth5.

When 3.00 mole of A and 1.00 mole of B are mixedin a 1.00 litre vessel, the following reaction takesplaceA(g) + B(g) 2C(g)The equilibrium mixture contains 0.5 mole of C.What is the value of equilibrium constant for thereaction?9 (z)(4) None of these(1) 0.128(3) 1.5

Consider the following PV diagram. AB is an isothermal process during which the temperature is 400 K. BC is an isochoric process and CA is an adiabatic process. If 1 mole of diatomic gas undergoes the cycle, then find the total work done by the gas. [ln 2=0.7]

What is the work done by 0.2 mole of a gas at room temperature to double its volume during isobaric process? (Take R=2 cal/mol°C)Where there is Celcius in unit of R? Shouldn't it be Kelvin?

A regular hexagonal prism has the surface area S .The largest volume of the prism is

24. Ratio of magnetic moments of fe3+ and co2+ is

The structure of a mixed oxide is cubic closed packed (ccp). The cubic unit cell of mixedoxide is composed of oxide ions. One fourth of the tetrahedral voids areoccupied by divalent mtal A and the octahedral voids are occupied by amonovalent metal B. The formula of the oxide is:

Which of the following compound does not react by SN1 mechanism. ?

Which of the following triads belongs to transition elements?

Maximum pKb value is for

96.An ideal solution was found to have a vapour pressure of 80 torr when the mole fraction of a non-volatile solute was 0.2. What would be vapour pressure of the pure solvent at the same temperature ? (1) 64 torr (2) 80 torr (3) 100 torr (4) 400 torr

Which one of the following ions has the highest value of ionic radius

The freezing point of an aqueous solution having 6%urea and18%glucose by weight is if kf water is 1.86K kg/mole

How to identify diastereomers and enantiomers?

what is meta centre and poiseuille's equation?

How many electrons have the values n = 2, l = 1 and in the configuration 1s22s22p3?Options:Should have chosen 1Wrong 357

A Metal salt [X] is reacted with Barium chloride which forms a white precipitate and that is insoluble in conc. HCl. Find X

which is thermally more stable, Nacl or KCl ? Why ?

The ratio of and bonds present in the monomer of polyacrylonitrile is Options: Should have chosen 2 : 1 1 : 2 Wrong 3 : 1 1 : 3

The pressure needed to confine 1.5 mole of N2 molecules to 28 L flask is 1.0 bar. Thus, root mean square velocity of the gas (assuming ideal behaviour) is

34. In A3(g) gives 3A (g) reaction, the intial concentration of A3 is &quota&quotmol L . If x is the degree of dissociation of A3. The total no. Of miles at equilibrium will be

Replace le, la, les by un, une, des.1. le raisin2. les fruits3. la pêche4. le légume5. les tomates

how many alkyl group can be formed from normal butane?

Explain hybridisation of so2. By molecular orbital theory.

How to identify what will be the products just by seeing the reactants

23. In the reaction Fe2S3 > Fe2SO4 + SO2 What is the equivalent mass of Fe2S3?

Electrolysis of dilute and concentrated sulphuric acid and also electrolysis of 50% of sulphuric acid

A solid element burns completely in oxygen to give gaseous oxide without any change in volume. if the vapour density of oxide is 32, the equivalent weight would be?

9. Which of the following has the same no of s electron as the d electron in Fe^{+2} A=li (b=)=ca (c)=N (d)=p

Acetamide changes into methylamine by

air contain 20% o2 by volume. How many cc of air wi be required for oxidation of 100 cc of acelylene.

Question 10If bromine atom is available in the form of, say, two isotopes 7935Br (49.7%) and 8135Br(50.3%), calculate the average atomic mass of bromine atom.

38.A substance of mass M kg requires input of P watts to remain in the molten state at its molten state at its melting point when the power is turned off, the sample completely solidifies in time t sec . What is the latent heat of fission of the substance?

The complex showing a spin-only magnetic moment of 2.82 B.M. is