Which of the following are chemical changes ? (i) Decaying of wood (ii) Burning of wood (iii) Growth of wood in a tree (iv) Hammering of a nail on a piece of wood.A. (i) and (ii)B. (ii) and (iv)C. (iii) and (iv)D. (i), (ii) (iii).

Which of the following are chemical changes ? (i) Decaying of wood (ii

1.	Which of the following are chemical changes ? (i) Decaying of wood (ii) Burning of wood (iii) Growth of wood in a tree (iv) Hammering of a nail on a piece of wood.A. (i) and (ii)B. (ii) and (iv)C. (iii) and (iv)D. (i), (ii) (iii).
Answer» Correct Answer - D All the three are chemical changes.

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Which of the following are chemical changes ? (i) Decaying of wood (ii) Burning of wood (iii) Growth of wood in a tree (iv) Hammering of a nail on a piece of wood.A. (i) and (ii)B. (ii) and (iv)C. (iii) and (iv)D. (i), (ii) (iii).

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