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Assertion : In the dissociation of PCl(5...

Assertion : In the dissociation of `PCl_(5)` at constant pressure and temperature addition of helium at equilibrium increases the dissociation of `PCI_(3).`
Reason : Helium reacts with Cl, and hence shifts the equilibrium in forward direction.

A

If both (A) and (R) are correct and (R) is the correct explanation of (A).

B

If both (A) and (R) are correct, but(R) is not the correct explanation of (A)

C

If(A) is correct, but (R) is incorrect

D

If both (A) and (R) are incorrect

Text Solution

Verified by Experts

The correct Answer is:
C
C Helium is an inert gas and hence does not react with `Cl _(2).` However to keep the pressure constant on addition of helium, volume of the system will increase which will favour forward reaction.
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