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PCl3 and PCl5 both exist but only PH3 ex...

`PCl_3 and PCl_5` both exist but only `PH_3` exists while `PH_5` does not exist . This is because .

A

H is less electronegative than P

B

the activation energy for the formation of `PH_5` is very high

C

`PH_5` immediately decomposes to `PH_3 and H_2` because its equilibrium constant for the decomposition is very high

D

An element is able to utilize its d-orbitals for bonding only with elements which are more electronegtaive than it .

Text Solution

Verified by Experts

The correct Answer is:
D
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VMC MODULES ENGLISH-CHEMICAL BONDING & CHEMICAL STRUCTURE -IMPECCABLE
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