Question

Indicate whether the following statements are True or False. Also
write the false statements in their correct form.
(a) Air is necessary for combustion.
(b) Magnesium is a non-combustible metal.
(c) Carbon dioxide is an excellent fire extinguisher.
(d) Calorific value of wood is higher than that of coal.


NCERT Class VIII
Science - Exemplar Problems

Chapter 6. Combustion and Flame

Answer 1

(a) True.

(b)False. Magnesium is a combustible metal.

(c)True.

(d)False.The calorific value of wood is higher than that of coal.

Answer 2

(i) This is true.
(ii) This is false . Mg is a combustible metal.
(iii)This is true.
(iv) This is false.Calorific value of wood is lower than that of coal.