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>>Class 12
>>Chemistry
>>The p-Block Elements
>>Phosphorus Halides
>> $PCl5 is covalent in gaseous and liquid s$

Question

Assertion

$P C l_{5}$ is covalent in gaseous and liquid states but ionic in solid state.

Reason

$P C l_{5}$ in solid state consists of tetrahedral $P C l_{4}^{+}$ cation and octahedral $P C l_{6}^{-}$ anion

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C

Assertion is correct but Reason is incorrect

D

Both Assertion and Reason are incorrect

Hard

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Updated on : 2022-09-05

Solution

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Correct option is B)

Both Assertion and reason are true and reason is not the correct explanation of assertion.

$P C l_{5}$ is trigonal bipyramidal containing $s p^{3} d$ hybridized $P$ atom in liquid and gaseous state. Wherease in solid state it consists of tertahedral $P C l_{4}^{+}$ cation octahedral $P C l_{6}^{-}$ anion.

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In $P C l_{5}$ , phosphorous is in $s p^{3} d$ hybridized state but all its five bonds are not equivalent. Justify answer with reason.

In the solid state $P C l_{5}$ exists as:

In solid state $P C l_{5}$ is a :

In solid state $P C l_{5}$ exist as an ionic solid $[P C l_{4}]^{+} [P C l_{6}]^{-}$ hybridisation state of cation and anion respectively :

In solid $P C l_{5}$ molecule, how many $P - C l$ bonds are present in the cation?

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