1 gram of a carbonate $(M_2CO_3)$ on treatment with excess HCl produces $0.01186$ mole of $CO_2$ . The molar mass of $M_2CO_3$ in $g\; mol^{−1}$ is :

Question

$\begin{array}{1 1} (1) 118.6 \\ (2) 11.86 \\ (3) 1186 \\ (4) 84.3 \end{array}$