$1.4\; g$ of an organic compound was digested according to Kjeldahl’s method and the ammonia evolved was absorbed in $60\; mL$ of $M/10\; H_2SO_4$ solution. The excess sulphuric acid required $20\;mL$ of $M/10\;NaOH$ solution for neutralization. The percentage of nitrogen in the compound is :

Question

$\begin{array}{1 1} 3 \\ 5 \\ 10 \\ 24 \end{array} $