The equilibrium SO2Cl2(g)⇌SO2(g)+Cl2(g) is attained at 250C in a closed container and inert gas helium is introduced. Which of the following statements are correct?
1 Concentration of SO2, Cl2 and SO2Cl2 change
2 More chlorine is formed
3 concentration of SO2 is reduced
4 More SO2Cl2 is formed