The difference between combustible over non-combustible substances is:
A
it cannot ignite
B
it can ignite
C
need low activation energy
D
need high activation energy
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Solution
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Correct option is
B
it can ignite
Combustible substances:- Substances which burn in air to produce heat and light are called combustible substances. Eg:- wood, coal, charcoal, kerosene, petrol, diesel, liquefied petroleum gas (LPG), compressed natural gas (CNG) etc.
Non-Combustible substances:- Substances like stone, glass, iron nails, etc. do not burn on being exposed to flame.
