Question 27
Match the substances in Column A with their applications given in Column B.
Column A
(Substances) Column B
(Applications) (a) Oxygen
(i) For making crackers (b) Copper (ii) For disinfecting water (c) Sulfur (iii) all living beings inhale during breathing (d) iron (iv) for making electric wires (e) Chlorine (v) for making rails
Question 27
Match the substances in Column A with their applications given in Column B.
| Column A (Substances) | Column B (Applications) |
| (a) Oxygen | (i) For making crackers |
| (b) Copper | (ii) For disinfecting water |
| (c) Sulfur | (iii) all living beings inhale during breathing |
| (d) iron | (iv) for making electric wires |
| (e) Chlorine | (v) for making rails |
Oxygen - (iii) All living beings inhale during breathing
Oxygen is necessary for the survival of living beings and all living being inhale oxygen and release carbon dioxide during breathing
Copper - (iv) For making electric wires
Copper being highly malleable and ductile and having high electrical conductivity is used for making wires
Sulphur - (i) For making crackers
Sulfur is used for making crackers as it contains brilliant and dazzling bright light
Iron - (v) For making rails
To prevent the wear and provide durability cast iron is used for making rails.
Chlorine - (ii) For disinfecting water
Chlorine has the disinfecting property hence it used to disinfect water from certain bacteria's and fungi
Column A
(substances) Column B
(applications) (a) Oxygen (iii) All living beings inhale during breathing (b) Copper (iv) For making electric wires (c) Sulphur (i) For making crackers (d) iron (v) For making rails (e) Chlorine (ii) For disinfecting water
Oxygen - (iii) All living beings inhale during breathing
Oxygen is necessary for the survival of living beings and all living being inhale oxygen and release carbon dioxide during breathing
Copper - (iv) For making electric wires
Copper being highly malleable and ductile and having high electrical conductivity is used for making wires
Sulphur - (i) For making crackers
Sulfur is used for making crackers as it contains brilliant and dazzling bright light
Iron - (v) For making rails
To prevent the wear and provide durability cast iron is used for making rails.
Chlorine - (ii) For disinfecting water
Chlorine has the disinfecting property hence it used to disinfect water from certain bacteria's and fungi
| Column A (substances) | Column B (applications) |
| (a) Oxygen | (iii) All living beings inhale during breathing |
| (b) Copper | (iv) For making electric wires |
| (c) Sulphur | (i) For making crackers |
| (d) iron | (v) For making rails |
| (e) Chlorine | (ii) For disinfecting water |
