Q.

Which of the following example(s) represents rapid combustion?

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a

Burning of matchsticks

b

Burning of cooking gas

c

Both 1 and 2

d

Ignition of a cracker 

answer is C.

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Detailed Solution

Rapid Combustion is the phenomenon of rapidly burning with formation of heat and light.
Thus, Burning of Matchsticks and cooking gas is rapid combustion.
 
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Which of the following example(s) represents rapid combustion?