Question

The number of water molecules is maximum in :

• A. 18 gram of water
• B. 18 moles of water
• C. 18 molecules of water
• D. 1.8 gram of water

Answer 1

Answer: (B)

$\because$ 1 mole water = $6.02\times 10^{23}$ molecules
$\therefore$ 18 mole water = $18\times 6.02\times 10^{23}$ molecules
so, 18 mole water has maximum number of molecules.