Identify the fast chemical change
(a)Bursting of a ballon
(b)Ripening of mangoes
(c)Burning of firecrackers
(d)Rusting of iron
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Answer:
(c)
Explanation:
It is a spontaneous reaction, since firecracker is made up of compounds whose constituent atoms are highly reactive. Rusting and ripening of mangoes are chemical changes but take place very slowly.
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