JEE Main Chemistry question

Chemistry Equilibrium JEE Main

In which of the following equilibrium, change in volume of the system does not alter the number of moles?

(A)N₂(g)+O₂(g)⇌2NO(g)Correct
(B)PCl₅(g)⇌PCl₃(g)+Cl₂(g)
(C)N₂(g)+3H₂(g)⇌2NH₃(g)
(D)SOCl₂(g)⇌SO₂(g)+Cl₂(g)

Answer: (A)

Solution

Only (A) has Δn=0.

Question ID VK-136160