Question

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

(iii), (iv)

(iii) 28 g of N₂ and 32 g of O₂

(iv) 12 g of C(s) and 23 g of Na(s)