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Question 600423
JEE Chemistry · Hard

Chemical and Ionic Equilibrium: Kc numerical MCQ

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Kc numericalHardQuestion 600423

Question

For A + B ⇌ C + D, starting with 1 mol each of A and B in 1 L, at equilibrium [C] = 0.4 M. Kc is:
  1. A
    0.16/0.36 ≈ 0.44
    Correct
  2. B
    0.4/0.6 = 0.67
  3. C
    0.4
  4. D
    1.78

Correct answer

0.16/0.36 ≈ 0.44

Explanation

ICE: [A]=[B]=1−0.4=0.6, [C]=[D]=0.4. Kc = (0.4)²/(0.6)² = 0.16/0.36 ≈ 0.44.

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