A compound ( x ) with molar mass 108 g mol^-1 undergoes acetylation to give product with molar mass 192 g mol^-1. The number of amino groups in the…

A compound ( $\displaystyle x$ ) with molar mass $\displaystyle 108 \mathrm{~g} \mathrm{~mol}^{-1}$ undergoes acetylation to give product with molar mass $\displaystyle 192 \mathrm{~g} \mathrm{~mol}^{-1}$. The number of amino groups in the compund $\displaystyle (x)$ is $\displaystyle \_\_\_\_$.