Question: Rearrange the following (I to IV) in the order of increasing masses and choose the correct answer from (a), (b), (c) and (d) (Atomic mass: N=14, O=16, Cu=63).
I. 1 molecule of oxygen
II. 1 atom of nitrogen
III. 1 x 10^-10 g molecular weight of oxygen
IV. 1 x 10^-10 g atomic weight of copper
(a) II<I<III<IV
(b) IV<III<II<I
(c) II<III<I<IV
(d) III<IV<I<II
Correct Answer: (a) II<I<III<IV