Question

4. Which of the following is a chemical change ?
(a) Tearing
(b) Melting
(c) Ageing
(d) freezing
5. On cooling a substance, the speed of its particles
(a) decreases
(b) increases
(c) remains same
(d) becomes zero
​

Answer 1

4)Ageing

5)decreases

@Ramanari12❤✌

Answer 2

Answer:

1 -Ageing

2 -decreases