Q22Multiple choice
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.
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(a) Air is necessary for combustion.
(c) Carbon dioxide is an excellent fire extinguisher.
(b) Magnesium is a non-combustible metal.
(d) Calorific value of wood is higher than that of coal.