Question

plz answer guys it is of states of matter​

Answer 1

C.

(i)H2 < He < O2 < CO2 (logically)

Since b depends on size.

(ii)CH4 > O2 > H2

Since a depends on intermolecular forces - all the gases given have only weak Van der Waals force of attraction, which depends on size.

I logically deduced O2 > CH4 > H2 ,(molecular weight + element's period) but actual data said otherwise.