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6.1. Equilibrium - 1 (chemical Equilibrium) — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry6.1. Equilibrium - 1 (chemical Equilibrium)1 Mark
MCQ
Assertion : Reaction quotient is defined in the same way as equilbrium constant at any stage of the reaction.
Reason : If $Q_c$ (reaction quotient) $ < K_C$ (equilibrium constant) reaction moves in direction of reactants.
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • ✓
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: C.
If the Assertion is correct but Reason is incorrect.
c
$aA + bB \rightleftharpoons cC + dD,\,{Q_c} = \frac{{{{[C]}^c}{{[D]}^d}}}{{{{[A]}^a}{{[B]}^b}}}$ If $Q_c > K_c$, reaction will proceed in the direction of reactants If $Q_c < K_c$, reaction will move in direction of products. If $Q_c = K_c$, the reaction mixture is already at equilibrium.

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