Consider 16 g of O2 and 16 g of O3 (O = 16). Which of the following statements is/are correct?

The O2 sample contains more molecules than the O3 sample.

Both samples contain the same number of oxygen atoms.

The two samples occupy the same volume at STP.

Both samples contain the same number of molecules.

The O2 sample contains more molecules than the O3 sample.

Both samples contain the same number of oxygen atoms.

JEE Main levelOne or more correct optionsDifficulty 2 of 3mc011

Consider $16 g$ of $O X_{2}$ and $16 g$ of $O X_{3}$ (O = 16). Which of the following statements is/are correct?

Moles:

O X_{2}

= 16/32 = 0.50

O X_{3}

= 16/48 = 0.333

. Atoms in each

= 16/16 = 1.0

mol, so the atom counts are equal. The molecule counts differ (

0.50 > 0.333

), so

O X_{2}

has more molecules and a larger STP volume.