GKFix MCQ Question

What is the correct expression for Qc for the reaction 2NOBr(g) ⇌ 2NO(g) + Br2(g)?

• A. Qc = [NOBr]^2 / ([NO]^2[Br2])
• B. Qc = [NO]^2 / ([NOBr]^2[Br2])
• C. Qc = [Br2] / ([NOBr]^2[NO]^2)
• D. Qc = ([NO]^2[Br2]) / [NOBr]^2