QBManager

CHXII10:HALOALKANES AND HALOARENES

322775 Chloropicrin is obtained by the reaction of

1 Steam on carbon tetrachloride

2 Nitric acid on chlorobenzene

3 Chlorine on picric acid

4 Nitric acid on chloroform

Explanation:

${CHCl}_{3} + {HNO}_{2} ⟶ {CCl}_{3} {NO}_{2} + H_{2} O$

CHXII10:HALOALKANES AND HALOARENES

322776 Which one of the following processes does not occur during formation of ${CHCl}_{3}$ from $C_{2} H_{5} OH$ and bleaching powder?

1 Hydrolysis

2 Reduction

3 Oxidation

4 Chlorination

Explanation:

${CaOCl}_{2} + H_{2} O \overset{Hydrolysis}{⟶} Ca (OH)_{2} + {Cl}_{2}$
${CH}_{3} {CH}_{2} OH + {Cl}_{2} \overset{Oxidation}{⟶} {CH}_{3} CHO + 2 HCl$
${CH}_{3} CHO + 3 {Cl}_{2} \overset{Chlorination}{⟶} {CCl}_{3} CHO + 3 HCl$
supporting img

CHXII10:HALOALKANES AND HALOARENES

322777 The number of moles of Ag metal to be reacted with ${CHCl}_{3}$ to get 1 mole of $C_{2} H_{2}$ is

1 1

2 2

3 4

4 6

Explanation:

${CHCl}_{3} + 6 Ag + {Cl}_{3} HC \to CH \equiv CH + 6 AgCl$

CHXII10:HALOALKANES AND HALOARENES

322778 Assertion :
Chloroform is heavier than water.
Reason :
$H$ atom of chloroform is basic.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

Chloroform is heavier than water. It is acidic due to the easy release of the $H$ atom as $H^{+}$ . This is because of the -I effect of the three chlorine atoms, which makes the $C$ partially positive. Such a carbon abstracts electron from the $H$ atom. Therefore, option (3) is correct.

CHXII10:HALOALKANES AND HALOARENES

322775 Chloropicrin is obtained by the reaction of

1 Steam on carbon tetrachloride

2 Nitric acid on chlorobenzene

3 Chlorine on picric acid

4 Nitric acid on chloroform

Explanation:

${CHCl}_{3} + {HNO}_{2} ⟶ {CCl}_{3} {NO}_{2} + H_{2} O$

CHXII10:HALOALKANES AND HALOARENES

322776 Which one of the following processes does not occur during formation of ${CHCl}_{3}$ from $C_{2} H_{5} OH$ and bleaching powder?

1 Hydrolysis

2 Reduction

3 Oxidation

4 Chlorination

Explanation:

${CaOCl}_{2} + H_{2} O \overset{Hydrolysis}{⟶} Ca (OH)_{2} + {Cl}_{2}$
${CH}_{3} {CH}_{2} OH + {Cl}_{2} \overset{Oxidation}{⟶} {CH}_{3} CHO + 2 HCl$
${CH}_{3} CHO + 3 {Cl}_{2} \overset{Chlorination}{⟶} {CCl}_{3} CHO + 3 HCl$
supporting img

CHXII10:HALOALKANES AND HALOARENES

322777 The number of moles of Ag metal to be reacted with ${CHCl}_{3}$ to get 1 mole of $C_{2} H_{2}$ is

1 1

2 2

3 4

4 6

Explanation:

${CHCl}_{3} + 6 Ag + {Cl}_{3} HC \to CH \equiv CH + 6 AgCl$

CHXII10:HALOALKANES AND HALOARENES

322778 Assertion :
Chloroform is heavier than water.
Reason :
$H$ atom of chloroform is basic.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

Chloroform is heavier than water. It is acidic due to the easy release of the $H$ atom as $H^{+}$ . This is because of the -I effect of the three chlorine atoms, which makes the $C$ partially positive. Such a carbon abstracts electron from the $H$ atom. Therefore, option (3) is correct.

CHXII10:HALOALKANES AND HALOARENES

322775 Chloropicrin is obtained by the reaction of

1 Steam on carbon tetrachloride

2 Nitric acid on chlorobenzene

3 Chlorine on picric acid

4 Nitric acid on chloroform

Explanation:

${CHCl}_{3} + {HNO}_{2} ⟶ {CCl}_{3} {NO}_{2} + H_{2} O$

CHXII10:HALOALKANES AND HALOARENES

322776 Which one of the following processes does not occur during formation of ${CHCl}_{3}$ from $C_{2} H_{5} OH$ and bleaching powder?

1 Hydrolysis

2 Reduction

3 Oxidation

4 Chlorination

Explanation:

${CaOCl}_{2} + H_{2} O \overset{Hydrolysis}{⟶} Ca (OH)_{2} + {Cl}_{2}$
${CH}_{3} {CH}_{2} OH + {Cl}_{2} \overset{Oxidation}{⟶} {CH}_{3} CHO + 2 HCl$
${CH}_{3} CHO + 3 {Cl}_{2} \overset{Chlorination}{⟶} {CCl}_{3} CHO + 3 HCl$
supporting img

CHXII10:HALOALKANES AND HALOARENES

322777 The number of moles of Ag metal to be reacted with ${CHCl}_{3}$ to get 1 mole of $C_{2} H_{2}$ is

1 1

2 2

3 4

4 6

Explanation:

${CHCl}_{3} + 6 Ag + {Cl}_{3} HC \to CH \equiv CH + 6 AgCl$

CHXII10:HALOALKANES AND HALOARENES

322778 Assertion :
Chloroform is heavier than water.
Reason :
$H$ atom of chloroform is basic.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

Chloroform is heavier than water. It is acidic due to the easy release of the $H$ atom as $H^{+}$ . This is because of the -I effect of the three chlorine atoms, which makes the $C$ partially positive. Such a carbon abstracts electron from the $H$ atom. Therefore, option (3) is correct.

CHXII10:HALOALKANES AND HALOARENES

322775 Chloropicrin is obtained by the reaction of

1 Steam on carbon tetrachloride

2 Nitric acid on chlorobenzene

3 Chlorine on picric acid

4 Nitric acid on chloroform

Explanation:

${CHCl}_{3} + {HNO}_{2} ⟶ {CCl}_{3} {NO}_{2} + H_{2} O$

CHXII10:HALOALKANES AND HALOARENES

322776 Which one of the following processes does not occur during formation of ${CHCl}_{3}$ from $C_{2} H_{5} OH$ and bleaching powder?

1 Hydrolysis

2 Reduction

3 Oxidation

4 Chlorination

Explanation:

${CaOCl}_{2} + H_{2} O \overset{Hydrolysis}{⟶} Ca (OH)_{2} + {Cl}_{2}$
${CH}_{3} {CH}_{2} OH + {Cl}_{2} \overset{Oxidation}{⟶} {CH}_{3} CHO + 2 HCl$
${CH}_{3} CHO + 3 {Cl}_{2} \overset{Chlorination}{⟶} {CCl}_{3} CHO + 3 HCl$
supporting img

CHXII10:HALOALKANES AND HALOARENES

322777 The number of moles of Ag metal to be reacted with ${CHCl}_{3}$ to get 1 mole of $C_{2} H_{2}$ is

1 1

2 2

3 4

4 6

Explanation:

${CHCl}_{3} + 6 Ag + {Cl}_{3} HC \to CH \equiv CH + 6 AgCl$

CHXII10:HALOALKANES AND HALOARENES

322778 Assertion :
Chloroform is heavier than water.
Reason :
$H$ atom of chloroform is basic.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

Chloroform is heavier than water. It is acidic due to the easy release of the $H$ atom as $H^{+}$ . This is because of the -I effect of the three chlorine atoms, which makes the $C$ partially positive. Such a carbon abstracts electron from the $H$ atom. Therefore, option (3) is correct.