Question

When Sneha switched on her refrigerator, it resulted in a short circuit. This caused a fire in the house. Which among the following can be used to extinguish this fire?

• A. Petrol
• B. Water
• C. Oxygen
• D. Carbon dioxide

Answer 1

The correct option is D Carbon dioxide

Carbon dioxide can be used as a fire extinguisher. It is heavier than oxygen, so it forms a blanket and cuts off the oxygen supply. This extinguishes the fire.
Water is a good conductor of electricity. So, it cannot be used to extinguish electrical fires. Petrol is a fuel. Thus, it cannot be used for extinguishing fire. Oxygen is a supporter of combustion.