Question: Which one of the following pairs of gases contains the same number of molecules [EAMCET 1987]
(a) 16 g of O₂ and 14 g of N₂
(b) 8 g of O₂ and 22 g of CO₂
(c) 28 g of N₂ and 22 g of CO₂
(d) 32 g of O₂ and 32 g of N₂
Correct Answer: (a) 16 g of O₂ and 14 g of N₂