Q23 / 75 · JEE Main 2020 (06 Sep Shift 2) · Chemistry

A solution of phenol in chloroform when treated with aqueous $NaOH$ gives compound $P$ as a major product. The mass percentage of carbon in $P$ is ______ .

Correct answer: 69

Solution

Reimer-Tiemann formylation reaction :

Molecular formula of product is $C_{7} H_{6} O_{2}$

Percentage weight of carbon $= (\frac{84}{122} \times 100) = 68 .85 %$

Hence, the correct answer is 69.

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