Question

22 g of a gas occupies 11.2 litres of volume at STP. The gas is ……

(a) CH₄ 

(b) NO 

(c) CO 

(d) CO₂

Answer 1

(d) CO₂

22 g of a gas occupies 11.2 litres. 

11.2 liters is occupied by 22 g of a gas. 

∴ Molar volume 22.4 liter will be occupied by 22/11.2 x 22.4 = 44 g 

∴ The gas is CO₂ .