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CHXII10:HALOALKANES AND HALOARENES

322779 When chloroform is heated with conc. nitric acid, we get chloropicrin. It is used as

1 Fertiliser

2 Antipyretic

3 Antibiotic

4 Insecticide

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322780 Hydrolysis of trichloromethane with aqueous $KOH$ gives

1 Methanol

2 Chloral

3 Acetylene

4 Potassium formate

Explanation:

${CHCl}_{3} + 3 KOH \to CH (OH)_{3} \to HCOOK$

CHXII10:HALOALKANES AND HALOARENES

322781 Reaction of benzene (in excess) with chloroform in the presence of anhydrous aluminium chloride forms

1 Chlorobenzene

2 Benzyl chloride

3 Triphenyl methane

4 Triphenylmethyl chloride

Explanation:

$3 C_{6} H_{6} + CHC l_{3} \overset{AlC l_{3} / heat}{\to} \underset{triphenyl methane}{{(C_{6} H_{5})}_{3} CH + 3HCl}$

CHXII10:HALOALKANES AND HALOARENES

322782 The gas liberated when ${CHCl}_{3}$ reacts with $Ag$ powder is

1

{CH}_{4}

2

C_{2} H_{4}

3

C_{2} H_{2}

4

HCl

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322779 When chloroform is heated with conc. nitric acid, we get chloropicrin. It is used as

1 Fertiliser

2 Antipyretic

3 Antibiotic

4 Insecticide

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322780 Hydrolysis of trichloromethane with aqueous $KOH$ gives

1 Methanol

2 Chloral

3 Acetylene

4 Potassium formate

Explanation:

${CHCl}_{3} + 3 KOH \to CH (OH)_{3} \to HCOOK$

CHXII10:HALOALKANES AND HALOARENES

322781 Reaction of benzene (in excess) with chloroform in the presence of anhydrous aluminium chloride forms

1 Chlorobenzene

2 Benzyl chloride

3 Triphenyl methane

4 Triphenylmethyl chloride

Explanation:

$3 C_{6} H_{6} + CHC l_{3} \overset{AlC l_{3} / heat}{\to} \underset{triphenyl methane}{{(C_{6} H_{5})}_{3} CH + 3HCl}$

CHXII10:HALOALKANES AND HALOARENES

322782 The gas liberated when ${CHCl}_{3}$ reacts with $Ag$ powder is

1

{CH}_{4}

2

C_{2} H_{4}

3

C_{2} H_{2}

4

HCl

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322779 When chloroform is heated with conc. nitric acid, we get chloropicrin. It is used as

1 Fertiliser

2 Antipyretic

3 Antibiotic

4 Insecticide

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322780 Hydrolysis of trichloromethane with aqueous $KOH$ gives

1 Methanol

2 Chloral

3 Acetylene

4 Potassium formate

Explanation:

${CHCl}_{3} + 3 KOH \to CH (OH)_{3} \to HCOOK$

CHXII10:HALOALKANES AND HALOARENES

322781 Reaction of benzene (in excess) with chloroform in the presence of anhydrous aluminium chloride forms

1 Chlorobenzene

2 Benzyl chloride

3 Triphenyl methane

4 Triphenylmethyl chloride

Explanation:

$3 C_{6} H_{6} + CHC l_{3} \overset{AlC l_{3} / heat}{\to} \underset{triphenyl methane}{{(C_{6} H_{5})}_{3} CH + 3HCl}$

CHXII10:HALOALKANES AND HALOARENES

322782 The gas liberated when ${CHCl}_{3}$ reacts with $Ag$ powder is

1

{CH}_{4}

2

C_{2} H_{4}

3

C_{2} H_{2}

4

HCl

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322779 When chloroform is heated with conc. nitric acid, we get chloropicrin. It is used as

1 Fertiliser

2 Antipyretic

3 Antibiotic

4 Insecticide

Explanation:

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

CHXII10:HALOALKANES AND HALOARENES

322780 Hydrolysis of trichloromethane with aqueous $KOH$ gives

1 Methanol

2 Chloral

3 Acetylene

4 Potassium formate

Explanation:

${CHCl}_{3} + 3 KOH \to CH (OH)_{3} \to HCOOK$

CHXII10:HALOALKANES AND HALOARENES

322781 Reaction of benzene (in excess) with chloroform in the presence of anhydrous aluminium chloride forms

1 Chlorobenzene

2 Benzyl chloride

3 Triphenyl methane

4 Triphenylmethyl chloride

Explanation:

$3 C_{6} H_{6} + CHC l_{3} \overset{AlC l_{3} / heat}{\to} \underset{triphenyl methane}{{(C_{6} H_{5})}_{3} CH + 3HCl}$

CHXII10:HALOALKANES AND HALOARENES

322782 The gas liberated when ${CHCl}_{3}$ reacts with $Ag$ powder is

1

{CH}_{4}

2

C_{2} H_{4}

3

C_{2} H_{2}

4

HCl

Explanation:

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

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