Question

1. Classify the changes involved in the following processes as physical
chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
(c) Burning of coal
(d) Melting of wax
(e) Beating aluminium to make aluminium foil
(1) Digestion of food​

Answer 1

Answer:

a). chemical changes:

b). physical change

c). chemical change

d). physical change

e). physical change

1). chemical change