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CA
Question Practice

What role does oxygen play in the chemical changes during the candle burning?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 7
Science
Curiosity
Changes Around Us: Physical and Chemical
Question Bank

What role does oxygen play in ...

Single Answer MCQ
Q-00127817

What role does oxygen play in the chemical changes during the candle burning?

1

It melts the wax

2

It is essential for combustion

3

It prevents evaporation

4

It cools down the flame

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