Question

Which of the following is amphoteric?

• A. CrO
• B. CrO\(_4\)
• C. Cr\(_2\)O\(_3\)
• D. CrO\(_3\)

Hint:

Amphoteric oxides can react with both acids and bases. Cr\(_2\)O\(_3\) is a common example.

Answer 1

The Correct Option is C

Step 1: Understand amphoteric nature.
An amphoteric substance is one that can act as both an acid and a base.

Step 2: Identify the amphoteric oxide.
Cr\(_2\)O\(_3\) (chromium(III) oxide) is an amphoteric oxide, as it reacts with both acids and bases to form salts.