Equivalent weight of a bivalent metal is 37.2. The molecular weight of its chloride is

 Equivalent weight of bivalent metal = 37.2

$\therefore$   Atomic weight of metal = 37.2 x 2 = 74.4

$\therefore$  Formula of chloride = ${\mathrm{MCl}}_2$

Hence, molecular weight of chloride

$\left({\mathrm{MCl}}_2\right)=74.4+2\times 35.5=145.4$