Question

The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is

• A. 1 L
• B. 11.2 L
• C. 22.4 L
• D. 20 L

Answer 1

Answer: (B)

11.2 L

Answer 2

Molecular weight = V.d. × 2 = 11.2 × 2 = 22.4

Volume of 22.4 gm Substance of NTP = 22.4 litre

1 gm substance at NTP = $30R^{1/2}$

11.2 gm substance of NTP = 11.2 litre