300+ TOP MCQs on Equilibrium State and Answers

NEET  Chemistry is the very imporatant paper in the Medical Entrance EXAM. So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Chemistry objective questions on air pollution. NEET Chemistry Equilibrium State Multiple Choice Questions

MCQs on Equilibrium State :

1. Equimolar solutions of the following compounds are prepared separately in water. Which will have the lowest pH value?
(A) BeCl2
(B) SrCl2
(C) CaCl2
(D) MgCl2

Answer

Answer: (a)

2. Addition of which chemical will decrease the hydrogen ion concentration of an acetic acid solution?
(A) NH4Cl
(B) Al2(SO4)3
(C) AgNO3
(D) NaCN

Answer

Answer: (d)

3. In some solutions, the concentration of H3O+ remains constant even when small amounts of strong acid or strong base are added to them. These solutions are known as
(A) ideal solution
(B) colloidal solution
(C) true solution
(D) buffer solution

Answer

Answer: (d)

4. All compounds are in equilibrium in a reversible reaction. If reactants are doubled in concentration the equilibrium constant would be
(A) reduced to half its original value
(B) reduced to one-fourth of its original value
(C) doubled
(D) constant

Answer

Answer: (d)

5. The solubility of Fe(OH)3 would be maximum in
(A) 0.1M NaOH
(B) 0.1M HCl
(C) 0.01M KOH
(D) 0.1M H2SO4

Answer

Answer: (d)

6. Which of the following sulphides has the largest value of Ksp?
(A) CuS
(B) CdS
(C) PbS
(D) ZnS

Answer

Answer: (d)

7. According to Le Chatelier’s principle adding heat to a solid and liquid in equilibrium will cause the
(A) amount of solid to decrease
(B) amount of liquid to decrease
(C) temperature to rise
(D) temperature to fall

Answer

Answer: (a)

8. 0.1M solution of which of the substances will be basic?
(A) sodium borate
(B) ammonium chloride
(C) calcium nitrate
(D) sodium sulphate

Answer

Answer: (a)

9. At a certain temperature 2HI ⥨ H2 + I2 only 50% HI is dissociated at equilibrium. The equilibrium constant is
(A) 0.25
(B) 1.0
(C) 3.0
(D) 0.6

Answer

Answer: (a)

10. Which has the highest degree of ionization?
(A) 0.1M NH3
(B) 0.001M NH3
(C) 0.1M NH3
(D) 0.0001M NH3

Answer

Answer: (d)

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