Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Electro Chemistry

Question:

Statement I: Zn 2+ possesses greater oxidizing power than Sn 2+

Statement II: The metal ion of the metal with lower –ve potential (or) higher +ve potential is a better oxidizing agent than the metal ion of the metal with higher –ve potential or less +ve potential

Options:

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

Both Statement I and Statement II are correct and Statement II is not a correct explanation of Statement I

Statement I is correct but Statement II is false

Statement I is false but Statement II is correct

Correct Answer:

Statement I is false but Statement II is correct

Explanation:

The correct answer is option 4 - Statement I is false but Statement II is correct
The complete statement is: Oxidizing power depends on the standard reduction potential; the species with higher (more positive) reduction potential acts as a stronger oxidizing agent.

  • Standard reduction potentials:
    Zn²⁺/Zn = −0.76 V
    Sn²⁺/Sn = −0.14 V

Since Sn²⁺ has a higher (less negative) reduction potential than Zn²⁺, it is a better oxidizing agent.
Therefore, Zn²⁺ does NOT possess greater oxidizing power than Sn²⁺, so Statement I is actually incorrect based on data.

However, Statement II correctly states the general rule about oxidizing agents.

Thus, the correct interpretation is:
Statement I is false, Statement II is correct → Option (4).