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Q.

A solution of phenol in $C H C l_{3}$ when treated with aq. $N a O H$ gives a compound as a major product (T). The mass percentage of oxygen in (T) is

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answer is 26.

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Detailed Solution

Molecular formula of product (T) is $C_{7} H_{6} O_{2}$
Mass % of ‘0’ = $\frac{2 \times 16}{84 + 6 + 32} \times 100 = 26.22 %$

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