NEET UG CHEMISTRY MCQ: THERMODYNAMICS

$\mathrm{A}_{2}+\mathrm{B}_{2} \rightarrow 2 \mathrm{AB} . \Delta \mathrm{H}_{\mathrm{f}}=-200 \,\mathrm{kJ} \,\mathrm{mol}^{-1}$
$\mathrm{A B, A_{2}}$ and $\mathrm{B_{2}}$ are diatomic molecules. If the bond enthalpies of $\mathrm{A_{2}, B_{2}}$ and $\mathrm{A B}$ are in the ratio $1: 0.5: 1$, then the bond enthalpy of $\mathrm{A_{2}}$ is ____ $\mathrm{kJ} \,\mathrm{mol^{-1}}$ (Nearest integer)