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  • 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 ________(to the nearest integer) ((Atomic mass : C=12;H=1;O=16)  

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 ________(to the nearest integer) ((Atomic mass : C=12;H=1;O=16)
 

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best_answer

A solution of phenol in chloroform when treated with aqueous NaOH gives compound P as a major product.

Now, 

The mass percentage of carbon in (P)

= (total mass of C in P) /(total mass of P) X 100

 

Total mass of P = The molecular weight of C7H6O2  =  122

Total mass of C in P = 12 X 7 

,So,

\% \mathrm{C}=\frac{12 \times 7 \times 100}{122}=68.85 \approx 69

Ans = 69

Posted by

Kuldeep Maurya

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