Question

Four 1-1 liter flasks are separately filled with the gases $N_2,Ne,N_{2}O,$ and $S{O}_3$ at the same temperature pressure. The ratio of the total number of atoms of these gases present in a different flask would be ______.

• A. 1 : 1 : 1 : 1
• B. 1 : 2 : 2 : 3
• C. 2 : 1 : 3 : 4
• D. 3 : 2 : 2 : 1

Answer 1

Answer: (C)

2 : 1 : 3 : 4

Ratio of Volume = ratio of moles

As all the gases have same volume so same no. of moles.

No of atoms = Atomicity $\times$ No

So,

$\begin{array}{c}2\times No:1\times No:3\times No:4:No\\ 2:1:3:4\end{array}$