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Question

Which among the following is non-combustible in nature?


Your Answer
A
LPG
Your Answer
B
Petrol
Correct Answer
C
Chalk
Your Answer
D
Paper

Solution

The correct option is C Chalk
Substances which burn or undergo combustion are called combustible substances. While, substances which do not burn are called non-combustible substances.
LPG, petrol and paper burn on coming in contact with fire. So, they are combustible in nature. Whereas, chalk does not burn. Hence, it is a non-combustible substance.

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