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Question

The distillation of bleaching powder and acetone gives:

A
CHCl3
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B
chloral
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C
CH3Cl
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D
CCl4
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Solution

The correct option is A CHCl3
The distillation of bleaching powder and acetone gives chloroform CHCl3
Bleaching powder CaOCl2 supplies the necessary chlorine and slaked lime (calcium hydroxide) for the reaction.
CaOCl2+H2OCa(OH)2+Cl2
Chlorine so obtained acts as a mild oxidizing as well as chlorinating agent.
Chlorination of acetone gives trichloroacetone.
CH3COCH3+3Cl2CCl3COCH3+3HCl
Hydrolysis of trichloroacetate gives chloroform.
2CCl3COCH3+Ca(OH)22CHCl3+(CH3COO)2Ca

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