Question

Classify the changes involved in the following processes as physical or chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
(c) Burning of coal
(d) Melting of wax
(e) Beating aluminium to make aluminium foil
(f) Digestion of food
Topic: Physical and Chemical Changes

Answer 1

⛄⛄HEYA!!!!! HERE IS YOUR 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

⛄⛄ HOPE IT HELPS YOU.⛄⛄

Answer 2

Dear Student,

◆ Answer -

Physical changes -

• (b) Dissolving sugar in water
• (d) Melting of wax
• (e) Beating aluminium to make aluminium foil

Chemical changes -

• (a) Photosynthesis
• (c) Burning of coal
• (f) Digestion of food

● Extra information -

• In physical change, composition of substances remains same after.
• It is reversible change. For example, boiling of water.
• In chemical change, composition of substance changes.
• It is irreversible change. For example, rusting of iron.

Thanks dear. Hope this helps you...