Question

Assertion (A): In the dissociation of PCl5 at constant pressure and
temperature addition of helium at equilibrium increases the
dissociation of PCl5 .
Reason (R) : Helium removes Cl2 from the field of action.
(i) Both A and R are true and R is correct explanation of A.
(ii) Both A and R are true but R is not correct explanation of A.
(iii) A is true but R is false.
(iv) Both A and R are false.

Answer 1