Question

Which of the following is a heterogeneous compound?

• A. Chalk
• B. Limestone
• C. Marble
• D. Plaster of Paris

Hint:

Impurities in marble cause its different colours and make it heterogeneous.

Answer 1

The Correct Option is C

Step 1: Concept.
Heterogeneous compounds are those in which the composition is not uniform throughout.
Step 2: Explanation.
Marble (CaCO\textsubscript{3} with impurities) has non-uniform distribution of minerals, making it heterogeneous.
Step 3: Conclusion.
Thus, marble is the heterogeneous compound among the given options.