Question

Classify the following into physical and chemical change.(a) tearing of cloth,(b) melting of wax,(c) cooking of food.

Answer 1

Answer:

a) Physical Change

b) Physical Change

c) Chemical Change

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Answer 2

Answer:

physical changes: tearing of cloth,melting of wax

chemical changes: melting of wax,cooking of food

melting of wax:The melting of the solid wax to form liquid wax and the evaporation of liquid wax to form wax vapour are physical changes. The burning of the wax vapour is a chemical change.

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