MCQ
An organic compound containing $C, H$ and $N$ gave following analysis : $C = 40\%$, $H = 13.33\%$ and $N = 46.67\%$. Its empirical formula would be
  • A
    ${C_2}{H_7}{N_2}$
  • B
    $C{H_5}N$
  • $C{H_4}N$
  • D
    ${C_2}{H_7}N$

Answer

Correct option: C.
$C{H_4}N$
c
(c) Element        No. of moles      Simple ratio

 $C = 40\%$

 $40/12$

 $3.33$

 $1$

 $H = 13.33\%$ 

 $13.33/1$

 $13.33$

 $4$

 $N = 46.67\%$

 $46.67/14$

 $3.33$

 $1$

Thus formula $C{H_4}N$.

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