1. Tardigrade
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  3. Chemistry
  4. 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 ldots ldots . % (Round off the answer to the nearest whole number) (Atomic mass: C=12;H=1;O=16 )

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Q. 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 $\ldots \ldots .$ %
(Round off the answer to the nearest whole number)
(Atomic mass : $C=12;H=1;O=16$ )

NTA AbhyasNTA Abhyas 2022

Solution:

Solution
mass of Salicylaldehyde $=12\times 7+6\times 1+16\times 2=122$
mass of carbon $=12\times 7=84$
The mass $\%$ of carbon $=\frac{84}{122}\times 100=68.85\%$