Question

(xvii) Which of the following has the
maximum number of atoms
(a) 18g of Co (b)18g of CH 1
(c) 18g of H2O (d)18g of O, 1​

Answer 1

Answer:

Let's convert everything to no of moles first

1) 18g water→1 mole

2)18g Oxygen → 18/32 moles

3)18g Carbon dioxide→ 18/44

4)18 g methane → 18/16

clearly 18 g methane have maximum no of molecules as mor no of moles.

Answer 2

Answer:

option b

Explanation:

since CH has the least gram atomic mass as compared to other molecules..

so it has maximum number of moles as compared to other molecules..

so it has maximum number of atoms as compared to other molecules