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 true and reason is the true explanation of the asseraton.
B. If both assertion and reason are true and reason is not the correct explanation of the assertion.
C. If assertion is true bit reason is false.
D. If assertion is false but reason is true.

Answer

B

Explanation

Both asseration and reason are true and the reason is the correct explanation of the asseration.
`PCl_(5)` is trigonal bipyramidal containing `PCl_(4)^(+)` hybridized P atom in liquid and gaseous state. Whereas in solid state it consists of tetrahedral `PCl_(4)^(+)` cation and octahedral `PCl_(6)^(-)` anion.