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Question

Alkaline hydrolysis of 1,1,1-trichloro derivative (A) of an alkane gives a molecule (B) which produces red coloration with aqueous FeCl3. The compound (A) is ?

A
CH3CH2CCl3
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B
CH3CCl3
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C
CHCl3
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D
None of these
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Solution

The correct option is B CH3CCl3
Alkaline hydrolysis of a trichloro derivative will give a carboxylic acid. The carboxylic acid that gives red colouration with aqueous FeCl3 is acetic acid CH3COOH. Hence, the compound A is CH3CCl3.

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