If the density of water is 1 g `cm^(-3)` then the volume occupied by one molecule of water is approximately

Options

A. (a)`18 cm^(3)`
B. (b)`22400 cm^(3)`
C. (c )`6.02xx10^(-23) cm^(3)`
D. (d)`3.0xx10^(-23) cm^(3)`

Answer

D

Explanation

`d=M/V,1=M/V` or `M=V,18 g=18 ml`
`6xx10^(23)` molecule of water has volume `=18 c c`
1 molecule of water has volume`=18/(6xx10^(23))`
`=3xx10^(-23) cm^(3)`.