Question

Column A Column B
a. Burning of candle
b. Tearing of paper
c. Burning petrol
d.Water
e. Air
i. Mixture
ii. Compound
iii. Physical change
iv. Chemical change
v. Both physical and chemical change

Answer 1

Answer:

a. v.

b.iii.

c.iv.

d.ii.

e.i.

Answer 2

Answers :-

a. Burning of candle => v. Both physical and chemical change

This is because the burning of candle include the burning of wax which is a physical change and the burning of thread of candle is the chemical change

b. Tearing of paper => iii. Physical change

This is because when we tear paper no new substances are formed. Only the paper changes into many tiny pieces

c. Burning petrol => iv. Chemical change

This is because when we burn petrol a new substance is formed and its colour and smell changes

d. Water => Compound

This is because everywhere water exists in the form of H₂O. And the ratio of hydrogen to oxygen of water anywhere is 2 : 1.

e. Air => i. Mixture

This is because everywhere air doesn't have fixed ratio or substances