The number of water molecules is maximum in-

Options

A. 18 molecules of water
B. 1.8 g of water
C. 18g of water
D. 18 moles of water

Answer

D

Explanation

1 mol of water contains `6.022xx10^(23)` molecules
`therefore` 18 mol of water contains `18xx6.022xx10^(23)` molecules
Now, 1 mol of water =18g of water
Hence, no. of molecules in 18g of water`=6.022xx10^(23)`
and 1.8g of water`=6.022xx10^(22)` molecules.