NCERT/Class 11/Chemistry/Equilibrium

Equilibrium

Class 11 · Chemistry

40 questions14 easy13 medium13 hard

Sample Questions

Q1.If the equilibrium constant Kc for a reaction is very large (Kc > 10³), it indicates that:

  • AThe reaction is very slow
  • BThe reactants predominate at equilibrium
  • CThe products predominate at equilibrium
  • DThe reaction is at equilibrium from the start

Q2.A saturated solution of a sparingly soluble salt is an example of:

  • AHomogeneous equilibrium
  • BPhysical equilibrium
  • CHeterogeneous equilibrium
  • DChemical equilibrium in gaseous phase

Q3.The solubility of Ag2CrO4 in water is 6.5×10⁻⁵ mol/L. What is its Ksp?

  • A4.23 × 10⁻⁹
  • B1.10 × 10⁻¹²
  • C2.64 × 10⁻¹²
  • D1.69 × 10⁻⁹

Q4.At equilibrium, which of the following statements is correct about a reversible reaction?

  • AThe forward reaction stops completely
  • BThe concentrations of reactants and products are equal
  • CThe rates of forward and reverse reactions become equal
  • DOnly products are present in the reaction mixture

Q5.The solubility of BaSO4 in water at 25°C is 1.0 × 10⁻⁵ mol/L. What is its Ksp?

  • A1.0 × 10⁻⁵
  • B1.0 × 10⁻¹⁰
  • C2.0 × 10⁻⁵
  • D1.0 × 10⁻²⁵

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
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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

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