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Preparation of Carboxylic Acids

An aromic com...

Question

An aromic compound A of the molecular formula $C_{8} H_{10} O$ on reaction with iodine and dilute $N a O H$ gives a yellow precipitate. The structure of the compound is exprected to be:

A

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B

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C

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D

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Solution

The correct option is B
The compound forms a yellow precipitate with iodine and NaOH, this means that the compound gives the Iodoform test.
Thecondition for the compound to give the Iodoform test is the presence of $- C O C H_{3}$ group.

Thus (c) and (d) are incorrect due to absence of $- C O C H_{3}$ group.
Between option (a) and (b):
The molecular formula of the compound in option (a) is $C_{8} H_{8} O$ and that of (b) is $C_{8} H_{10} O$
(b) is the correct option
The reaction is :

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