Question

Classify the following as physical / chemical changes: [5]

i. Rusting of an iron nail

ii. Melting of wax

iii. Burning of an agarbatti

iv. Sublimation of iodine

v. Digestion of food

Answer 1

Answer:

1. Chemical Change
2. Physical change.
3. Chemical Change
4. Chemical Change
5. Chemical Change

Answer 2

Answer:

i rusting of iron nails= chemical change

ii Melting of wax= physical change

iii Burning of an agarbati = chemical change

iiii sublimation of iodine = physical change

iiiii digestion of food= chemical change

Explanation:

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