The simplest forumula of a compound containing `50%` of element `X(` at `wt. 10)` and `50%` of element `Y(` at `wt.20)` is `-`

Options

A. `XY`
B. `XY_(2)`
C. `X_(2)Y`
D. `X_(2)Y_(3)`

Answer

C

Explanation

`"Element % of element at. wt. Simple ratio" `
`X " "50%" "10" "(50)/(10)=5" "2`
`Y" "50%" "20" "(50)/(10)=2.5" "1`
Therefore simplest formula of compound is `X_(2)Y`