Chapter 20, Problem 1STP

Interpretation Introduction

Interpretation:

That metal ion which reduced easily is to be explained.

Concept introduction:

That metal ion which has lower strength of oxidizing agent is easily reduced.

Answer to Problem 1STP

Correct answer:

Option A - ${\text{Mg}}^{\text{+2}}$

Explanation of Solution

Reason for correct option:

Manganese ion is reduced easily because it has lower strength of oxidizing agent.

Conclusion

Reasons for incorrect options:

B. ${\text{Hg}}^{\text{+2}}$ ion is good oxidizing agent as compared to ${\text{Mg}}^{\text{+2}}$ ion. So ${\text{Hg}}^{\text{+2}}$ is not easily reduced.

C. ${\text{Ag}}^{\text{+1}}$ ion is good oxidizing agent as compared to ${\text{Mg}}^{\text{+2}}$ ion. So ${\text{Ag}}^{\text{+1}}$ is not easily reduced.

D. ${\text{Al}}^{\text{+3}}$ ion is good oxidizing agent as compared to ${\text{Mg}}^{\text{+2}}$ ion. So ${\text{Al}}^{\text{+3}}$ is not easily reduced.