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 ? is the formation constant, then the ****instability constant = ________**

a) 1 – ?

b) ? – 1

c) (1/?)

d) log(?)

**Answer: **(1/?)

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

^{-9}

a) 4.35 x 10^{-10}

b) 4.35 x 10^{10}

c) 4.35 x 10^{-8}

d) 4.35 x 10^{8}

**Answer: **4.35 x 10^{8}

**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?**

^{-12}

^{-14}

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 stabil****ity 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 (?)?**

a) ?_{n} = K_{1} + K_{2} + …. + K_{n}

b) ?_{n} = K_{1} x K_{2} x … x K_{n}

c) ?_{n} = logK_{1} + logK_{2} + …. + logK_{n}

d) ?_{n} = 1/(K_{1} + K_{2} + …. + K_{n})

**Answer: **?_{n} = K_{1} x K_{2} x … x K_{n}

**6. If the values of stepwise stability constants for a series of successive reactions are logK**_{1}** = 4, logK**_{2}** = 3.2, logK**_{3}** = 2.7 and logK**_{4}** = 2, what is the value of ?**_{4}**?**

_{1}

_{2}

_{3}

_{4}

_{4}

a) 11.9

b) 7.94 x 10^{11}

c) 1.47 x 10^{5}

d) 27.4

**Answer: **7.94 x 10^{11}