Which of the following substances has the minimum bond angle?

What is the structure of $IF_7$?

Which of the following molecules/species has the minimum number of lone pairs on its central atom?

Given below are two statements:
Statement $I$: The number of compounds among $SO_2$, $SO_3$, $SF_4$, $SF_6$ and $H_2S$ in which sulphur does not obey the Octet rule is $3$.
Statement $II$: Among $[H_2O, ClF_3, SF_4]$, $[NH_3, BrF_5, SF_4]$, $[BrF_5, ClF_3, XeF_4]$ and $[XeF_4, ClF_3, H_2O]$, the number of sets in which all the molecules have one lone pair of electrons on the central atom is $1$.

How many bonding and lone pairs of electrons are present in the structure of ammonia $(NH_3)$?

Which of the following is the correct order of increasing number of lone pair of electrons on the central atom?