Question

16. Which of the following pairs have the same number of atoms?
(i) 16 g of O2 (g) and 4 g of H2(g)
(ii) 16 g of O2 and 44 g of CO2
(iii) 28 g of N2 and 32 g of O2
(iv) 12 g of C(s) and 23 g of Na(s)​

Answer 1

Answer:

2

Explanation:

16g O2=1mol

as molecular mass of o2 is 16.

44g CO2

C=12

O=16×2=32

12+32=44

So molecular mass of CO2 is 44g

which means 44g CO2=1mol