Question

Which of the following are chemical changes ?
(i) decaying of wood
(ii) burning of wood
(iii) sawing of wood
(iv) hammering of nail into wood
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Answer 1

Answer:

Hello friend

Correct answer :- C

(c) (iii) and (iv)

Hope Helps ❤️

Answer 2

correct answer is c=(iii) and (iv)