Question

An element X is strongly electropositive and an element Y is strongly electronegative. Both are univalent. The compound formed by their combination contains :

• A. $X^{+},Y^{-}$
• B. $X^{-},Y^{+}$
• C. $X{Y}_2$ molecules
• D. $X^{2+},Y^{2-}$

Answer 1

Answer: (A)

$X^{+},Y^{-}$

The compound formed from the given statement is $X^{+}{Y}^{-}$. X is more electropositive (easily loose electron) and Y is more electronegative (gains electrons easily). So X loses electron easily that is gained by Y, Hence it forms XY compound.

Hence, the correct option is $\text{A}$