GKFix MCQ Question

Which reaction will shift in the backward direction when pressure increases?

• A. CO(g) + Cl₂(g) ⇌ COCl₂(g)
• B. CH₄(g) + 2S₂(g) ⇌ CS₂(g) + 2H₂S(g)
• C. CO₂(g) + C(s) ⇌ 2CO(g)
• D. CaCO₃(s) ⇌ CaO(s) + CO₂(g)