Which one of the following parts of gases contains the same number of molecules?

Options

A. 16 g of `O_(2) and 14g ` of `N_(2)`
B. 8 g of `O_(2) and 22 ` of `CO_(2)`
C. 28 g of `N_(2)` and 22 g of `CO_(2)`
D. 32 g of `O_(2)` and 32 g of `N_(2)`

Answer

A

Explanation

`16 gO_(2)` has number of moles `=(16)/(32)=(1)/(2)`
`14 g N_(2)` has number of moles `=(14)/(28)=(1)/(2)`
Number of moles are same, so number of molecules are also be same.