The simplest formula of a compound containing 50% of element X(atomic mass 10) and 50% of element Y (atomic mass 20) is

Answer

C

Explanation

(c ) 50% of X (Atomic mass 10), 50% of Y(Atomic mass 20). Relative number od atoms of `X=50/10=5 and thenY=50/20=2.5` Simple Ratio 2:1. Foemula `X_2Y`.