Source: Exemplar
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
Options
Option A is correct
(i) and (ii)
Option B
(ii) and (iii)
Option C
(iii) and (iv)
Option D
(i) and (iv)