Question

6. 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

Answer:

c burning petrol

Explanation:

As, if you burn the petrol you cannot get it back.

Answer 2

C) burning of petrol

Explanation: burning of petrol is a chemical change because once they are burned we can’t get them back.