Question

Name the gas used for :- 1.)rocket fuel 2.)packaging 3.)supporter of combustion 4.)fire extinguisher

Answer 1

1: O2 and H2
2: N2
3:O2
4:CO2

Answer 2

(i) Hydrogen and Oxygen … , it is not use in gas form, it used in liquid form.
(ii) Nitrogen
(iii) Oxygen
(iv)Carbon Dioxide