JEE Main 15 Apr 2018 Shift 2 Solved Paper

At a certain temperature in a 5 L vessel, 2 moles of carbon monoxide and 3 moles of chlorine were allowed to reach equilibrium according to the reaction,
CO+Cl2⇌COCl2
At equilibrium, if one mole of CO is present then equilibrium constant ( Kc ) for the reaction is :-