Question

Q6. Classify the following as physical and chemical changes. Give reason
(a)Burning of Candle
(b)Melting of Ice
(c)Burning of petrol in an engine
(d)Change of colour of iron bar on strong heating.
(e)Churning of milk to get butter
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Answer 1

Answer:

burning of candle,burning of petrol, churning of milk to get butter is chemical change and the remaining is physical change

Answer 2

Answer:

PHYSICAL CHANGE

1) Melting of ice

2) Change of colour of iron bar on strong heating

CHEMICAL CHANGE

1)Burning of candel

2)Burning of petrol in an engine

3)Churning of milk to get butter

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