For which reaction at equilibrium does a decrease in volume of the container cause a decrease in product(s), quantity at comstant temperature?

For which reaction at equilibrium does a decrease in volume of the con

1.	For which reaction at equilibrium does a decrease in volume of the container cause a decrease in product(s), quantity at comstant temperature?
Answer» `CaCO_(3)(s)rarrCaO(s)+CO_(2)(G)` `2SO_(2)(g)+O_(2)rarr2SO_(3)(g)` `HCL(g)+H_(2)O(L)rarrH_(3)O^(+)(aq)+Cl^(-)(aq)` `SO_(2)(g)+NO_(2)(g)rarrSO_(3)(g)+NO(g)` Answer :A