Question

Column A
(a) Irreversible Change
(b)Reversible change
(c)showing of a piece of wood
(d) ripening of mango
(e) melting of wax
(f) formation of a sugar solution

Column B
1) needs mixing of two substances
2) needs heating
3) chemical change
4) new substance is formed
5) physical change
6) no new substance is formed​

Answer 1

Answer:

A-3

Explanation:

A-3

B-5

C-6

D-4

E-2

F-1

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Answer 2

even i am confused with this