Question

Which of the following is a chemical change?
[a]. Melting of wax
[b]. Boiling of water
[c]. Melting of ice
[d]. Burning of coal
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Answer 1

D)

IS THE ANS...............................

Answer 2

Answer:

(a) Photosynthesis → Chemical change

(b) Dissolving sugar in water → Physical change

(c) Burning of coal → Chemical change

(d) Melting of wax → Physical change

(e) Beating aluminium to make aluminium foil → Physical change

(f) Digestion of food → Chemical change

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