Which of the following are chemical changes?
(a) Growth of a plant
(b) Rusting of Iron
(c) Mixing of iron fillings and sand
(d) Cooking of food
(e) Digestion of food
(f) Freezing of water
(g) Burning of a candle.
Which of the following are chemical changes?
(a) Growth of a plant
(b) Rusting of Iron
(c) Mixing of iron fillings and sand
(d) Cooking of food
(e) Digestion of food
(f) Freezing of water
(g) Burning of a candle.