JEE Main 2025 · 3 April · morning · Single correct · +4 / −1

In the following system, PCl₅( g)⇋ PCl₃( g)+Cl₂( g) at equilibrium, upon addition of xenon gas at constant T & p , the concentration of

  1. (a) PCl₅,PCl₃&Cl₂ remain constant
  2. (b) PCl₃ will increase
  3. (c) Cl₂ will decrease
  4. (d) PCl₅ will increase
Answer and solution

Answer (b) PCl₃ will increase

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Study Chemical Equilibrium

Asked about 90 times in JEE Main since 2020. This question is from 2025.