JEE Main 2023 · 1 February · evening · Multiple correct · +4 / −1

The effect of addition of helium gas to the following reaction in equilibrium state, is :
PCl₅(g)⇌ PCl₃(g)+Cl₂(g)

  1. (a) the equilibrium will shift in the forward direction and more of Cl₂ and PCl₃ gases will be produced.
  2. (b) addition of helium will not affect the equilibrium.
  3. (c) helium will deactivate PCl₅ and reaction will stop.
  4. (d) the equilibrium will go backward due to suppression of dissociation of PCl₅.
Answer and solution

Answer (a), (b)

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Study Chemical Equilibrium

Asked about 90 times in JEE Main since 2020. This question is from 2023.