Question

What is Philosopher’s wool?

• A. ZnO
• B. ZnS
• C. ZnCl\textsubscript{2}
• D. ZnSO\textsubscript{4}

Hint:

ZnO is amphoteric – reacts with both acids and bases.

Answer 1

The Correct Option is A

Step 1: Concept.
Philosopher’s wool is the common name for zinc oxide (ZnO).
Step 2: Reason.
It forms as white fluffy wool-like substance when zinc metal is oxidized.
Step 3: Conclusion.
Hence, Philosopher’s wool = ZnO.