Question

Helping gas in the control of fire:
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Helium

Answer 1

Explanation:

c) Hydrogen

.............

Answer 2

Helping gas in the control of fire is nitrogen.

Nitrogen is used in liquid form to control fire. This gas is widely used in fire extinguishers to put off fire. It can be used in occupied spaces without any threat to the environment. As a fire suppressant, it reduces the amount of oxygen in the surroundings where the fire must be put out.

Nitrogen is an inert gas that is present naturally in the atmosphere.