Question

Which of the following are chemical changes?

(i) Decaying of wood (ii) Burning of wood (iii) Sawing of wood

(iv) Hammering of a nail into a piece of wood

(a) (i) and (ii) (b) (ii) and (iii)

(c) (iii) and (iv) (d) (i) and (iv​

Answer 1

Answer:

option A is the correct answer

Answer 2

Answer:

Your answer is : A. Both 1 and 2 are correct