In which of the following reactions, the equilibrium remains unaffected on the addition of a small amount of argon at constant volume?
(i)
(ii)
(iii)
(iv) The equilibrium will remain unaffected in all three cases.
The answer is the option (iv) The equilibrium will remain unaffected in all three cases.
Explanation: At constant volume, equilibrium remains unaffected even on the addition of inert gas.
In each of the other cases,
(i)
(ii)
(iii) the Equilibrium will remain unaffected on addition of Argon which is an inert gas.
Thus, the correct answer has to be the option (iv).