The volume of the reaction vessel containing an equilibrium mixture is increased, while holding the temperature constant for the following reaction : SO2Cl2(g) SO2(g) + Cl2(g) When equilibrium is re-established, which of the following statements is true ?

According to the Le-Chatelier’s principle, with the increase in volume of the reaction mixture by keeping the temperature constant, the reaction moves in the direction where more number moles are present. So, concentration of 2 Cl is increased. Hence, according to the given reaction, option (a) is the correct answer.