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NEET2024Chemistry-Chemical Equilibrium

NEET 2024 Chemistry Reaction Quotient and Equilibrium Constant MCQ Question

Type: MCQ-numerical-Medium-Class 11

For the reaction 2A ⇌ B + C, Kc = 4×10⁻³. At a given time, the composition of reaction mixture is: [A] = [B] = [C] = 2×10⁻³ M. Then, which of the following is correct?

A

Reaction has a tendency to go in backward direction.

B

Reaction has gone to completion in forward direction.

C

Reaction is at equilibrium.

D

Reaction has a tendency to go in forward direction.

Correct Answer

Option A

Detailed Explanation

The reaction quotient Q = [B][C]/[A]² = (2×10⁻³)²/(2×10⁻³)² = 1, which is greater than Kc. Thus, the reaction will shift to the left to reach equilibrium.

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