Explain the term common ion effect.

Important Questions on Ionic Equilibrium in Solution

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 26

How does solubility product differ from ionic product? Discuss two important applications of solubility product.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 27

Give reason for the following:
Zinc sulphide is precipitated by hydrogen sulphide from an ammoniacal solution.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 27

Give reason for the following:
The precipitation of $\mathrm{Mg}(\mathrm{OH}{)}_2$ is prevented by the addition of ${\mathrm{NH}}_4\mathrm{Cl}$ prior to the addition of ${\mathrm{NH}}_4\mathrm{OH}$ but its precipitation by $\mathrm{NaOH}$ is not prevented by the prior addition of $\mathrm{NaCl}$.
 

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 27

Give reasons for the following:
In qualitative analysis, ${\mathrm{NH}}_4\mathrm{Cl}$ is added before adding ${\mathrm{NH}}_4\mathrm{OH}$ solution for testing ${\mathrm{Fe}}^{3+}, {\mathrm{Cr}}^{3+}$ and ${\mathrm{Al}}^{3+}$.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 28

Define the term ‘solubility product’. How would you use this concept to separate the sulphides of copper from that of zinc?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 29

How is concept of solubility product utilized in qualitative analysis?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 30

What is the Buffer solution? Give an example of an acidic buffer and explain its buffer action.

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>ADDITIONAL QUESTIONS>Q 31

Derive Henderson-Hasselbalch equation.