The shape of the molecule $ClF_3$ is

The geometry with respect to the central atom of the molecules $N(SiH_3)_3$,$Me_3N$,and $(SiH_3)_3P$ respectively are

Which of the following contains the maximum number of lone pairs on the central atom?

In the $BrF_3$ molecule,the equatorial lone pairs minimize which of the following?

$S +$ Conc. $H_2SO_4 \longrightarrow X + Y$
Here $X$ is a gas and $Y$ is a liquid and both are triatomic molecules. The number of electron lone pairs present on the central atoms of $X$ and $Y$ are respectively.

Which of the following molecules has a three-fold axis of symmetry?