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Fireworks (crackers) that go off with a sudden burst of heat, light, sound and gas are an example of:
ARapid combustion
BExplosion
CSpontaneous combustion
DSlow combustion
Answer & Solution
Correct answer: B. Explosion
When a reaction takes place with the sudden evolution of heat, light, sound and a large amount of gas, it is called an explosion. Fireworks are deliberate, controlled explosions. Crackers can also explode if pressure is applied.
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