Q.
For the reaction $\left(PCl\right)_{5}\left(g\right)\rightleftharpoons\left(PCl\right)_{3}\left(g\right)+\left(Cl\right)_{2}\left(g\right)$ , the forward reaction of constant temperature is favoured by
(1) Introducing an inert gas at constant volume
(2) Introducing chlorine gas at constant volume
(3) Introducing an inert gas at constant pressure
(4) Introducing $PCl_{5}$ at constant volume
(5) Introducing $PCl_{3}$ gas at constant volume
NTA AbhyasNTA Abhyas 2020
Solution: