Asserartion:`PCl_(5)` is covalent in gaseous and liquide states but ionic in solid state.
Reason: `PCl_(5)` in solid state consits of tetrahhedral `PCl_(4)^(+)` cation and octahedral `PCl_(6)^(-)` anion.

Options

A. If both assertion and reason are correct and reason is correct explanation for assertion.
B. If both assertion and reason are correct but reason is not correct explanation for assertion.
C. If assertion is correct but reason is incorrect.
D. If both assertion and reason are incorrect.

Answer

B

Explanation

Correct explanation : In the gaseous and liquid states, `PCl_(5)` exists as descrete covalent molecule molecules. But in the solid state, as `PCl_(4)^(+) " and " PCl_(6)^(-)` ions which are attracted to each other.