Question

1. Which of the following is a chemical
change?
(a) melting of ice cream
(b) ironing of clothes
(c) burning of petrol
(d) drying of hair​

Answer 1

c) burning of petrol is the chemical change

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Answer 2

Answer:

c) Burning of petrol

Explanation:

Because if you see a , b & d it can be reversed but burning of petrol is irreversible.

Chemical changes are irreversible.