Which one of the following has maximum number of atoms of oxygen?

Options

A. 2 g of carbon monoxide
B. 2 g of carbon dioxide
C. 2 g of sulphur dioxide
D. 2 g of water

Answer

D

Explanation

Maximum number of atoms of oxygen:
`CO = ((2)/(28))`, `CO_(2) = ((2)/(44))` ,`SO_(2)((2)/(64))`, `H_(2)O((2)/(18))`
Number of atoms of oxygen = `((2)/(28) xx 6.023 xx 10^(23)),((2 xx 2)/(44) xx 6.023 xx 10^(23))`, `((2 xx 2)/(64) xx 6.023 xx 10^(23))`
`((2)/(18) xx 6.023 xx 10^(23))` maximum.