Question

Which one of the following has largest number of molecules ?

• A. 34 g water
• B. 28 g of carbon dioxide
• C. 46 g of methanol
• D. 54 g of $N_2{O}_5$

Answer 1

Answer: (A)

$34g$ of water has highest number of moles $34/18$
$=1.8$ (lesser the molecular mass, more the number of moles).
Hence it has maximum number of molecules