Chemistry: Topic-wise Test- 4

Question 1

The number of moles of acidified KMnO₄ required to convert one mole of sulphite ion into sulphate ion is-

Accepted Answer

2/5

Answer

3/5

Answer

4/5

Answer

1

Question 2

N₂(g) + 3H₂ (g) 2NH₃(g) ; Haber's process, Mo is used as -

Accepted Answer

A catalytic promoter

Answer

A catalyst

Answer

An oxidising agent

Answer

As a catalytic poison

Question 3

Potash alum is a double salt, its aqueous solution shows the characteristics of-

Accepted Answer

Question 4

x is moles of HIO₄ consumed

Accepted Answer

x = 3

Answer

x = 2

Answer

x = 4

Answer

x = 1

Question 5

Product (B) is -

Accepted Answer

Answer

Answer

Answer

Question 6

; Product (A) is -

Accepted Answer

Answer

Answer

Answer

Question 7

Product of above reaction is obtained by

Accepted Answer

Meso

Answer

Racemic mixture

Answer

Diastereomers

Answer

Optically-active product

Question 8

, Products obtained in the above reaction are -

Accepted Answer

HCHO, 2HCO₂H

Answer

HCHO, HCO₂H

Answer

CO₂, 2HCO₂H

Answer

CO₂, HCHO, HCO₂H

Question 9

The vapour pressure of n-hexane at 350 K is 840 torr and that of cyclohexane is 600 torr. Mole fraction of hexane in the mixture that boils at 350 K and 1 atm pressure assuming ideal behaviour is

Accepted Answer

0 .67

Answer

0.75

Answer

0 .50

Answer

0 .80

Question 10

At 298 K, the vapour pressure of pure water is 23.76 mm Hg and that of an aqueous solution is 22.98 mm Hg. Thus, molality of solution is (assume dilute solution)

Accepted Answer

1.83

Answer

0.033

Answer

0.67

Answer

5.55

Question 11

12.8 g of naphthalene (C₁₀H₈) is dissolved in 92 g toluene (C₇H₈). Boiling point of this solution is

(boiling point of toluene = 110°Cand mole fraction boiling point elevation constant of toluene is 36.1 K)

Accepted Answer

113.3&deg; C

Answer

149.2&deg; C

Answer

116.7&deg; C

Answer

111.1&deg; C

Question 12

Elevation in boiling point of a molar (1 M) glucose solution (d = 1.2 g mL^-1) is

Accepted Answer

0.98&#160;Kb

Answer

Kb

Answer

1.20Kb

Answer

1.02 Kb

Question 13

For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g water, the elevation in boiling point at 1 atm pressure is 2°C. Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (Take, K_b = 0.76 K mol^-1 kg).
[IITJEE2012]

[IITJEE2012]

Accepted Answer

724

Answer

740

Answer

736

Answer

718

Question 14

Osmotic pressure of insulin solution at 298 K is found to be 0.0072 atm at 298 K. Hence, height of water column due to this pressure is (density of mercury = 13.6 g mL^-1)

Accepted Answer

7.44&#160;cm&#160;

Answer

0.76 cm

Answer

0.70&#160;cm

Answer

76&#160;cm

Question 15

Which has maximum osmotic pressure at temperature T K?

Accepted Answer

All of the above are isotonic solutions

Answer

100 mL of 1.0 M urea solution

Answer

300 mL of 1.0 M glucose solution

Answer

Mixture of 100 mL of 1.0 M urea solution and 300 mL of 1 .0 M glucose solution

Question 16

There is formation of Prussian blue when Fe³⁺ reacts with [Fe(CN)₆]^4-. Two solutions as shown are separated by a semipermeable membrane AB. Due to osmosis, there is

Accepted Answer

No blue colour formation

Answer

Blue colour formation in side X

Answer

Blue colour formation in side Y

Answer

Blue colour formation in both the sides X and Y

Question 17

Three solutions of following in water are isothermal conditions as given:

Thus,

Accepted Answer

p₂ > p₃ > P₁

Answer

p₁ > p₂ > P₃

Answer

p₁ < p₂ < P₃

Answer

p₂ > p₁ > P₃

Question 18

Only One Option Correct Type
This section contains 7 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct

Q.

The degree of dissociation (α ) o f weak electrolyte A_xB_y is related to van’t Hoff factor (i) by the expression

[AIEEE 2011]

Accepted Answer

Answer

Answer

Answer

Question 19

0.004 M Na₂S0₄ aqueous solution is isotonic with 0.01 M glucose solution at 300 K. Thus, degree of dissociation of Na₂S0₄ is

Accepted Answer

75 %

Answer

50 %

Answer

25 %

Answer

85 %

Question 20

When 20 g of naphthoic acid (C₁₁H₈O₂) is dissolved in 50 g of benzene, a freezing point depression of 2 K is observed. [K_f (benzene) = 1.72Kmol^-1 kg]. The van’t Hoff factor (i) is

[IIT - JEE 2007]

Accepted Answer

0.5

Answer

1

Answer

2

Answer

3

Question 21

An aqueous solution of a solute AB has boiling point of 101.08° C and freezes at -1 .80 °C . AB is found to be 100% ionised at boiling point. If K_b /K_f = 0.3, then AB

Accepted Answer

behaves as non-electrolyte at the freezing point of solution

Answer

is 100% ionised at the freezing point of solution

Answer

forms dimer at the freezing point of solution

Answer

forms trimer at the freezing point of solution

Question 22

Only One Option Correct Type

Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q.

The correct order of acidic strength of the following alcohols is

Accepted Answer

Answer

Answer

Answer

Question 23

Which compound given below has the highest solubility in water ?

Accepted Answer

HO—CH₂—CH(OH)—CH₂OH

Answer

CH3OH

Answer

CH₃CH₂OH

Answer

HO—CH₂CH₂—OH

Question 24

What is the correct increasing order of acidity of the following?

Accepted Answer

I < II < IV < III

Answer

I < II < III < IV

Answer

IV < III < II < I

Answer

II < I < IV < III

Question 25

What is the order of solubility of the following in water?

Accepted Answer

Ill < II < I

Answer

I&#60; ll&#60; III

Answer

Ill < I < II

Answer

II < I < III

Question 26

Which of the following can be used for the distinction of ethanol from phenol?

Accepted Answer

NaOH

Answer

NaHCO3

Answer

Na

Answer

CH3MgBr

Question 27

Consider the following reaction,

The above reaction can best be brought about by

Accepted Answer

Treatment with Na metal followed by addition of CH₃I

Answer

Conc. H₂SO₄ / heat followed by the treatment with CH₃OH/H⁺

Answer

Treatment with CH₃OH/H⁺ only

Answer

Treatment with p-toluene sulphonic acid chloride followed by CH₃ONa/CH₃OH

Question 28

E° values of Mⁿ⁺ + ne^- → M are given below
Fe²⁺/Fe -0.44 V, Mg²⁺/Mg -2.37 V, Pt(H₂)/H⁺ 0.00 V,
AI³⁺/AI -1.66 V , Zn²⁺/Zn - 0.76 V, Cu²⁺/Cu +0.34 V,
Ag⁺/Ag + 0.80 V, Ni²⁺/Ni -0.26 V

How many of the metals can be used to prevent corrosion of Ni to Ni²⁺?

Accepted Answer

Question 29

A fully charged battery contains 500 mL of 5.00 M H₂SO₄. What is the concentration of H₂SO₄in the battery after 6.0 A of current is drawn from the battery for 13.40 h?

Accepted Answer

Question 30

With increase in temperature the degree of dissociation of electrolyte:

Accepted Answer

Depends on the enthalpy change of dissolution

Answer

Increases

Answer

Decreases

Answer

Depends on the nature of salt

NEET Chemistry: Topic-wise Test- 4 Free Online Test 2026

MCQ Practice Test & Solutions: Chemistry: Topic-wise Test- 4 (45 Questions)

The number of moles of acidified KMnO₄ required to convert one mole of sulphite ion into sulphate ion is-

N₂(g) + 3H₂ (g) 2NH₃(g) ; Haber's process, Mo is used as -

Potash alum is a double salt, its aqueous solution shows the characteristics of-

x is moles of HIO₄ consumed

Product (B) is -

; Product (A) is -

Product of above reaction is obtained by

, Products obtained in the above reaction are -

The vapour pressure of n-hexane at 350 K is 840 torr and that of cyclohexane is 600 torr. Mole fraction of hexane in the mixture that boils at 350 K and 1 atm pressure assuming ideal behaviour is

At 298 K, the vapour pressure of pure water is 23.76 mm Hg and that of an aqueous solution is 22.98 mm Hg. Thus, molality of solution is (assume dilute solution)

12.8 g of naphthalene (C₁₀H₈) is dissolved in 92 g toluene (C₇H₈). Boiling point of this solution is
(boiling point of toluene = 110°Cand mole fraction boiling point elevation constant of toluene is 36.1 K)

Elevation in boiling point of a molar (1 M) glucose solution (d = 1.2 g mL^-1) is

Osmotic pressure of insulin solution at 298 K is found to be 0.0072 atm at 298 K. Hence, height of water column due to this pressure is (density of mercury = 13.6 g mL^-1)

Which has maximum osmotic pressure at temperature T K?

There is formation of Prussian blue when Fe³⁺ reacts with [Fe(CN)₆]^4-. Two solutions as shown are separated by a semipermeable membrane AB. Due to osmosis, there is

Three solutions of following in water are isothermal conditions as given:
Thus,

Only One Option Correct Type
This section contains 7 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct
Q.
The degree of dissociation (α ) o f weak electrolyte A_xB_y is related to van’t Hoff factor (i) by the expression
[AIEEE 2011]

0.004 M Na₂S0₄ aqueous solution is isotonic with 0.01 M glucose solution at 300 K. Thus, degree of dissociation of Na₂S0₄ is

When 20 g of naphthoic acid (C₁₁H₈O₂) is dissolved in 50 g of benzene, a freezing point depression of 2 K is observed. [K_f (benzene) = 1.72Kmol^-1 kg]. The van’t Hoff factor (i) is
[IIT - JEE 2007]

An aqueous solution of a solute AB has boiling point of 101.08° C and freezes at -1 .80 °C . AB is found to be 100% ionised at boiling point. If K_b /K_f = 0.3, then AB

Only One Option Correct Type
Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.
Q.
The correct order of acidic strength of the following alcohols is

Which compound given below has the highest solubility in water ?

What is the correct increasing order of acidity of the following?

What is the order of solubility of the following in water?

Which of the following can be used for the distinction of ethanol from phenol?

Consider the following reaction,
The above reaction can best be brought about by

E° values of Mⁿ⁺ + ne^- → M are given below
Fe²⁺/Fe -0.44 V, Mg²⁺/Mg -2.37 V, Pt(H₂)/H⁺ 0.00 V,
AI³⁺/AI -1.66 V , Zn²⁺/Zn - 0.76 V, Cu²⁺/Cu +0.34 V,
Ag⁺/Ag + 0.80 V, Ni²⁺/Ni -0.26 V
How many of the metals can be used to prevent corrosion of Ni to Ni²⁺?

A fully charged battery contains 500 mL of 5.00 M H₂SO₄. What is the concentration of H₂SO₄in the battery after 6.0 A of current is drawn from the battery for 13.40 h?

With increase in temperature the degree of dissociation of electrolyte:

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NEET Chemistry: Topic-wise Test- 4 Free Online Test 2026

MCQ Practice Test & Solutions: Chemistry: Topic-wise Test- 4 (45 Questions)

The number of moles of acidified KMnO4 required to convert one mole of sulphite ion into sulphate ion is-

N2(g) + 3H2 (g) 2NH3(g) ; Haber's process, Mo is used as -

Potash alum is a double salt, its aqueous solution shows the characteristics of-

x is moles of HIO4 consumed

Product (B) is -

; Product (A) is -

Product of above reaction is obtained by

, Products obtained in the above reaction are -

The vapour pressure of n-hexane at 350 K is 840 torr and that of cyclohexane is 600 torr. Mole fraction of hexane in the mixture that boils at 350 K and 1 atm pressure assuming ideal behaviour is

At 298 K, the vapour pressure of pure water is 23.76 mm Hg and that of an aqueous solution is 22.98 mm Hg. Thus, molality of solution is (assume dilute solution)

12.8 g of naphthalene (C10H8) is dissolved in 92 g toluene (C7H8). Boiling point of this solution is(boiling point of toluene = 110°Cand mole fraction boiling point elevation constant of toluene is 36.1 K)

Elevation in boiling point of a molar (1 M) glucose solution (d = 1.2 g mL-1) is

Osmotic pressure of insulin solution at 298 K is found to be 0.0072 atm at 298 K. Hence, height of water column due to this pressure is (density of mercury = 13.6 g mL-1)

Which has maximum osmotic pressure at temperature T K?

There is formation of Prussian blue when Fe3+ reacts with [Fe(CN)6]4-. Two solutions as shown are separated by a semipermeable membrane AB. Due to osmosis, there is

Three solutions of following in water are isothermal conditions as given:Thus,

Only One Option Correct Type This section contains 7 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correctQ.The degree of dissociation (α ) o f weak electrolyte AxBy is related to van’t Hoff factor (i) by the expression[AIEEE 2011]

0.004 M Na2S04 aqueous solution is isotonic with 0.01 M glucose solution at 300 K. Thus, degree of dissociation of Na2S04 is

When 20 g of naphthoic acid (C11H8O2) is dissolved in 50 g of benzene, a freezing point depression of 2 K is observed. [Kf (benzene) = 1.72Kmol-1 kg]. The van’t Hoff factor (i) is [IIT - JEE 2007]

An aqueous solution of a solute AB has boiling point of 101.08° C and freezes at -1 .80 °C . AB is found to be 100% ionised at boiling point. If Kb /Kf = 0.3, then AB

Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q. The correct order of acidic strength of the following alcohols is

Which compound given below has the highest solubility in water ?

What is the correct increasing order of acidity of the following?

What is the order of solubility of the following in water?

Which of the following can be used for the distinction of ethanol from phenol?

Consider the following reaction,The above reaction can best be brought about by

E° values of Mn+ + ne- → M are given below Fe2+/Fe -0.44 V, Mg2+/Mg -2.37 V, Pt(H2)/H+ 0.00 V, AI3+/AI -1.66 V , Zn2+/Zn - 0.76 V, Cu2+/Cu +0.34 V, Ag+/Ag + 0.80 V, Ni2+/Ni -0.26 VHow many of the metals can be used to prevent corrosion of Ni to Ni2+?

A fully charged battery contains 500 mL of 5.00 M H2SO4. What is the concentration of H2SO4 in the battery after 6.0 A of current is drawn from the battery for 13.40 h?

With increase in temperature the degree of dissociation of electrolyte:

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About this NEET Practice Test

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The number of moles of acidified KMnO₄ required to convert one mole of sulphite ion into sulphate ion is-

N₂(g) + 3H₂ (g) 2NH₃(g) ; Haber's process, Mo is used as -

x is moles of HIO₄ consumed

12.8 g of naphthalene (C₁₀H₈) is dissolved in 92 g toluene (C₇H₈). Boiling point of this solution is
(boiling point of toluene = 110°Cand mole fraction boiling point elevation constant of toluene is 36.1 K)

Elevation in boiling point of a molar (1 M) glucose solution (d = 1.2 g mL^-1) is

Osmotic pressure of insulin solution at 298 K is found to be 0.0072 atm at 298 K. Hence, height of water column due to this pressure is (density of mercury = 13.6 g mL^-1)

There is formation of Prussian blue when Fe³⁺ reacts with [Fe(CN)₆]^4-. Two solutions as shown are separated by a semipermeable membrane AB. Due to osmosis, there is

Three solutions of following in water are isothermal conditions as given:
Thus,

Only One Option Correct Type
This section contains 7 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct
Q.
The degree of dissociation (α ) o f weak electrolyte A_xB_y is related to van’t Hoff factor (i) by the expression
[AIEEE 2011]

0.004 M Na₂S0₄ aqueous solution is isotonic with 0.01 M glucose solution at 300 K. Thus, degree of dissociation of Na₂S0₄ is

When 20 g of naphthoic acid (C₁₁H₈O₂) is dissolved in 50 g of benzene, a freezing point depression of 2 K is observed. [K_f (benzene) = 1.72Kmol^-1 kg]. The van’t Hoff factor (i) is
[IIT - JEE 2007]

An aqueous solution of a solute AB has boiling point of 101.08° C and freezes at -1 .80 °C . AB is found to be 100% ionised at boiling point. If K_b /K_f = 0.3, then AB

Only One Option Correct Type
Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.
Q.
The correct order of acidic strength of the following alcohols is

Consider the following reaction,
The above reaction can best be brought about by

E° values of Mⁿ⁺ + ne^- → M are given below
Fe²⁺/Fe -0.44 V, Mg²⁺/Mg -2.37 V, Pt(H₂)/H⁺ 0.00 V,
AI³⁺/AI -1.66 V , Zn²⁺/Zn - 0.76 V, Cu²⁺/Cu +0.34 V,
Ag⁺/Ag + 0.80 V, Ni²⁺/Ni -0.26 V
How many of the metals can be used to prevent corrosion of Ni to Ni²⁺?

A fully charged battery contains 500 mL of 5.00 M H₂SO₄. What is the concentration of H₂SO₄in the battery after 6.0 A of current is drawn from the battery for 13.40 h?