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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 :

( A ) 1186
( B ) 84.3
( C ) 11.86
( D ) 118.6

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