Question

two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.
Assertion (A): Silver oxide (\(\text{Ag}_2\text{O}\)) is an amphoteric oxide.
Reason (R): Metal oxides which react with both acids as well as bases are called amphoteric oxides.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true and Reason (R) is false.
• D. Assertion (A) is false and Reason (R) is true.

Answer 1

The Correct Option is A

Step 1: Understanding the Assertion (A):
The assertion posits that silver oxide (\( \text{Ag}_2\text{O} \)) is an amphoteric oxide. Amphoteric oxides are compounds reactive with both acids and bases, yielding salts and water. This implies silver oxide can function as a base with acids and an acid with bases.

Step 2: Understanding the Reason (R):
The reason defines amphoteric oxides as substances reacting with both acids and bases. This aligns with the standard definition. Amphoterism, exhibited by oxides like \( \text{Ag}_2\text{O} \), ZnO, and Al₂O₃, is a distinctive property, enabling these compounds to act as both acids and bases.

Step 3: Connecting Assertion (A) and Reason (R):
- The assertion accurately identifies silver oxide as amphoteric, capable of reacting with both acids and bases.
- The reason correctly defines amphoteric oxides by their dual reactivity with acids and bases.
- As the reason provides a correct definition and the assertion is a valid application of it, a direct connection exists between them.

Step 4: Conclusion:
Both the assertion and the reason are factually correct, and the reason accurately elucidates the assertion. Silver oxide (\( \text{Ag}_2\text{O} \)) is indeed amphoteric, demonstrating behavior consistent with the established definition of amphoteric oxides.