Properties Of Matter in Class 9 Science : Practice MCQ Questions & Answers with Explanations

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1.

Which of the following is a chemical property of matter?

A

Melting point

B

Hardness

C

Density

D

Reactivity with oxygen

View Answer

Correct Answer: D — Reactivity with oxygen

Explanation:

Reactivity with oxygen is a chemical property because it describes how a substance undergoes chemical change.