Which of the following contain more number of molecules

Options

A. 1 gm `H_(2)`
B. 1 gm `CO_(2)`
C. 1 gm `SO_(3)`
D. 1 gm `N_(2)`

Answer

A

Explanation

molecules `alpha` moles
moles = `(1)/(2),(1)/(44),(1)/(80),(1)/(28)`
`therefore` highest in 1gm `H_(2)`