GKFix MCQ Question

What is the correct expression for Qc for the reaction 2NO(g) ⇌ N2(g) + O2(g)?

• A. Qc = [NO]^2 / ([N2][O2])
• B. Qc = [N2] / ([NO]^2[O2])
• C. Qc = [O2] / ([NO]^2[N2])
• D. Qc = ([N2][O2]) / [NO]^2