Equilibrium

Class 11 · Chemistry

40 questions14 easy13 medium13 hard

Sample Questions

Q1.The degree of ionization of a weak acid increases when:

  • AIts concentration is increased
  • BIts concentration is diluted
  • CA common ion is added
  • DTemperature is decreased

Q2.The effect of increasing temperature on the equilibrium N2(g) + 3H2(g) ⇌ 2NH3(g) (ΔH = -92 kJ/mol) is:

  • AEquilibrium shifts to the right; Kc increases
  • BEquilibrium shifts to the left; Kc decreases
  • CNo shift in equilibrium; Kc remains same
  • DEquilibrium shifts to the right; Kc decreases

Q3.If Qc < Kc for a reaction, the reaction will:

  • AProceed in the reverse direction
  • BRemain at equilibrium
  • CProceed in the forward direction
  • DStop completely

Q4.A reaction has ΔG° = -RT ln K. If K = 1000 at 300K, what is ΔG° approximately? (R = 8.314 J/mol·K)

  • A+17.2 kJ/mol
  • B-17.2 kJ/mol
  • C+2494 J/mol
  • D-5743 J/mol

Q5.For the equilibrium CO(g) + H2O(g) ⇌ CO2(g) + H2(g), Kc = 4.24 at 800K. If [CO] = [H2O] = 0.1M initially, what are the equilibrium concentrations of CO2 and H2?

  • A0.1 M each
  • B0.067 M each
  • C0.033 M each
  • D0.194 M each

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
Create a test to practice all 40 questions →

Concepts Covered

Acids and BasesBuffer SolutionsCommon Ion EffectDynamic EquilibriumEquilibrium Constant Kc and KpHomogeneous and Heterogeneous EquilibriaIonic EquilibriumIonization of Weak Acids and BasesLaw of Chemical EquilibriumLe Chatelier's PrincipleReaction Quotient QRelationship between Kp and KcSolubility Product KsppH and pOH

Ready to practice?

Create a timed test from 40 questions in Equilibrium. Pick your difficulty, get instant scores.

Start Practice Test