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:

Answer = option a) (i) decaying of wood and (ii) burning of wood

Please mark me as brainleist

Answer 2

Answer:

(i) Decaying of wood and (ii) Burning of wood

Therefore the answer is option (a)