Home/
Competitive Exams/
NEET/
Chemistry/
Equilibrium/
Question 24004
NEET Chemistry · Medium

Equilibrium: Law of mass action MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Law of mass actionMediumQuestion 24004

Question

For aA+bB⇌cC+dDaA+bB\rightleftharpoons cC+dD, equilibrium constant in concentration form is:

  1. A
    Kc=[C]c[D]d[A]a[B]bK_c=\dfrac{[C]^c[D]^d}{[A]^a[B]^b}
    Correct
  2. B
    Kc=[A]a[B]b[C]c[D]dK_c=\dfrac{[A]^a[B]^b}{[C]^c[D]^d}
  3. C
    Kc=[A]+[B]+[C]+[D]K_c=[A]+[B]+[C]+[D]
  4. D
    Kc=RTK_c=RT

Correct answer

Kc=[C]c[D]d[A]a[B]bK_c=\dfrac{[C]^c[D]^d}{[A]^a[B]^b}

Explanation

Products appear in numerator and reactants in denominator.

Review Equilibrium notesStart timed chapter practice