Question

Four one litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same room temperature and pressure. The ratio of total number of atoms of these gases present in different flasks would be

• A. 1:1:1:1
• B. 1:2:2:3
• C. 2:1:2:3
• D. 3:2:2:1

Answer 1

The correct option is C 2:1:2:3

Under same conditions of T, P and Volume, the number of molecules present in all the vessels are same.
So, the ratio of number of atoms is 2:1:2:3.