Account for the follwing :
(i) `Bi(v)` is a stronger oxidizing agent then Sb(v).
(ii) N-N single bond is weaker then P - P Single bond.
(iii) Noble gases have very low boiling points.

Explanation

(i) Because in inert pair effect + 5 oxidation state is less in Bi then in Sb. So the bi in + 5
state will immediately get reducced to its +3 state and thus will be a better oxidizing agent than + 5 state of Sb
(ii) N-N single bond is weaker then P-P bond due to smaller size of N as compared to P.
Smaller size of N leads to the lone pair of electons on the both the N atoms repal each
other leading to unstability or weakening of N-N bond.
(iii) Noble gases have weak interatomic forces between them and thus have a very low boiling point.