Coordination Compounds are most important to understand for various competitive exams. These Coordination Chemistry MCQ With Answers are most asked in the most competitive exams i.e., IIT, JEE, NEET, AIIMS etc. Basically they are most important for all the pre-medical exams so it is most important to learn the MCQ on coordination compounds.

Coordination Chemistry MCQ With Answers with FREE PDF (Stability)

1. If β is the formation constant, then the instability constant = ________

a) 1 – β

b) β – 1

c) (1/β)

d) log(β)

Answer: (1/β)

2. For a particular complex, the dissociation equilibrium constant is given as 2.3 x 10^-9. What will be the overall stability constant for this complex?

a) 4.35 x 10^-10

b) 4.35 x 10¹⁰

c) 4.35 x 10^-8

d) 4.35 x 10⁸

Answer: 4.35 x 10⁸

3. Two complexes A and B have dissociation constants 1.0 x 10^-12 and 4.7 x 10^-14 respectively. Which complex will be more stable?

a) A

b) B

c) Both are equally stable

d) Cannot be determined

Answer: B

4. The degree of ________ between the metal ion and the ligand directly influences the stability of the complex in solution.

a) association

b) dissociation

c) ionisation

d) freedom

Answer: association

5. How are the stepwise stability constants (K) related to the overall stability constant (β)?

a) β_n = K₁ + K₂ + …. + K_n

b) β_n = K₁ x K₂ x … x K_n

c) β_n = logK₁ + logK₂ + …. + logK_n

d) β_n = 1/(K₁ + K₂ + …. + K_n)

Answer: β_n = K₁ x K₂ x … x K_n

6. If the values of stepwise stability constants for a series of successive reactions are logK₁ = 4, logK₂ = 3.2, logK₃ = 2.7 and logK₄ = 2, what is the value of β₄?

a) 11.9

b) 7.94 x 10¹¹

c) 1.47 x 10⁵

d) 27.4

Answer: 7.94 x 10¹¹

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