NEET Chemistry: Chemistry - Equilibrium questions with solutions

Q1. The degree of dissociation of \( \boldsymbol{P C l}_{5} \)

1. increases with increasing pressure
2. decreases with increasing pressure
3. no effect on change in pressure
4. decreases with decreasing pressure

Answer: decreases with increasing pressure

For the dissociation equilibrium of PCl5, the products contain more gas particles than the reactant. Raising pressure shifts equilibrium toward the side with fewer moles, so dissociation is suppressed. Therefore, the degree of dissociation decreases as pressure increases.