Level 3

Consider the following statement and arrange in the order of true / false.

${\mathrm{S}}_1$: In ${\mathrm{SnCl}}_2$, the bonding takes place in the ground state and the bond angle $\mathrm{Cl}-\mathrm{Sn}-\mathrm{Cl}$ is slightly less than $120°$.

${\mathrm{S}}_2$: The molecular geometry of ${\mathrm{XeF}}_7^{+}$ is pentagonal bipyramidal having two different $\mathrm{Xe}-\mathrm{F}$ bond lengths.

${\mathrm{S}}_3$: In ${\mathrm{SF}}_4$, the bond angles, instead of being $90°$ and $180°$, are $89°$ and $177°$ respectively due to the presence of a lone pair.

Which of the following statement is true for ${\mathrm{H}}_2\mathrm{S}$?

Which of the following statements is correct?

The correct structure of ${\mathrm{PCl}}_3{\mathrm{F}}_2$ is:

Which of the following statements is incorrect?

There are three diatomic species with each having a bond order of three. What is true regarding them?

(a) All of them can be isoelectronic.

(b) They are isostructural.

(c) They may include cationic/anionic species.

(d) They may include neutral species.

The correct order of boiling point for the substances ${\mathrm{H}}_2\mathrm{O}, {\mathrm{NH}}_3, \mathrm{CsF}$ and $\mathrm{He}$ is:

Find the total number of chemical species which are non-planar \& lone pair of a central atom occupy equitorial orbital.
${\mathrm{SF}}_4, {\mathrm{XeF}}_5^{\Theta }, {\mathrm{I}}_3^{\ominus }, {\mathrm{BrF}}_5, {\mathrm{XeO}}_2 {\mathrm{F}}_2, {\mathrm{ClF}}_3, {\mathrm{XeO}}_3$