Question

$10d{m}^3$ of $N_2$ gas and $10d{m}^3$ of gas X at the same temperature contain the same number of molecules.
The gas X is

• A. $CO$
• B. $C{O}_2$
• C. $H_2$
• D. $NO$

Answer 1

The correct option is A $CO$

If same volume is occupied by the gas, the no. of molecules are same, so no. of moles are same.
1 mole of gas $N_2$ $=2\times 14=28gm$
1 mole of $CO$ gas $=12+16=28gm$