Embibe Experts Solutions for Chapter: Chemical Bonding and Molecular Structure, Exercise 3: EXERCISE-3

The number of species which does not exist among the following

${\mathrm{XeF}}_3^{-}, {\mathrm{SH}}_6, {\mathrm{XeF}}_5 , {\mathrm{NCl}}_5, {\mathrm{PCl}}_5, {\mathrm{PCl}}_3, {\mathrm{XeF}}_3$

Find the number molecules in which bond angle is changed due to back bonding w.r.t. $\mathrm{B}/\mathrm{O}/\mathrm{N}$. 

${\mathrm{H}}_3{\mathrm{BO}}_3, \mathrm{B}(\mathrm{OMe}{)}_3, {\mathrm{BF}}_3, \mathrm{N}{\left({\mathrm{SiH}}_3\right)}_3, \mathrm{O}{\left({\mathrm{SiH}}_3\right)}_2$

Find the number of molecules having pyramidal structure.

${\mathrm{XeO}}_3, {\mathrm{H}}_3{\mathrm{O}}^{+}, {\mathrm{NH}}_3, {\mathrm{PH}}_3, {\mathrm{XeO}}_4, {\mathrm{XeO}}_6^{4-}$

Find the number of planes containing only three same atoms in ${\mathrm{AsF}}_5.$

How many valence shell $\mathrm{d}-$orbital$\left(\mathrm{s}\right)$ of xenon is/are not involved in hybridisation of ${\mathrm{XeOF}}_2$?

Among the following, find out the total number of molecules have more $\%$ of $\mathrm{p}$ character in $\mathrm{E}-\mathrm{H}$ bond length than that of ${\mathrm{PH}}_3.$ (Where $\mathrm{E}$ is central atom)
${\mathrm{AsH}}_3, {\mathrm{SbH}}_3, {\mathrm{NH}}_3, {\mathrm{H}}_2\mathrm{O}, {\mathrm{BH}}_3$

Find the number of compounds which are more covalent in nature compared to ${\mathrm{AlCl}}_3$ from the following.

${\mathrm{AlBr}}_3, {\mathrm{AlI}}_3, {\mathrm{BeCl}}_2, {\mathrm{BeBr}}_2, {\mathrm{AlF}}_3, {\mathrm{BeI}}_2 \left[\mathrm{Given}: {\mathrm{r}}_{{\mathrm{Be}}^{2+}}=0.31 \stackrel{°}{\mathrm{A}}, {\mathrm{r}}_{{\mathrm{Al}}^{3+}}=0.5 \stackrel{°}{\mathrm{A}}\right]$

Find number of ions which have pseudo inert gas configuration.

${\mathrm{Zn}}^{2+}, {\mathrm{Ga}}^{3+}, {\mathrm{Ge}}^{2+}, {\mathrm{Ge}}^{4+}, {\mathrm{Cu}}^{2+}$