Which of the following has maximum number of molecules?

Options

A. `7 g N_2`
B. `2g H_2`
C. `16 g NO_2`
D. `16 g O_2`

Answer

B

Explanation

`7 g N_2= ( 7)/(28 ) = (1)/(4) mol , 2 g H_2 = 2/2 = 1 mol`
` 16 g NO_2 =(16)/( 46 ) = 0.35 mol , 16 g O_2 = (16 )/(32 ) = 1/2 mol`
` therefore H_2 ` contains maximum number of molecules.