Chemistry - Mole Concept Question with Solution | TestHub

Mixture of two bivalent metals $A$ and $B$ having mass $2\mathrm{g}$ when dissolved in $\mathrm{HCl}$ at STP, $2.24\mathrm{L}$ ${\mathrm{H}}_2$ is evolved. What is the mass of $A$ present in mixture? (Atomic mass of $A=15\mathrm{u},B=30\mathrm{u}$ )