The sum of number of lone pairs of electrons present on the central atoms of ${\mathrm{XeO}}_3,{\mathrm{XeOF}}_4$ and ${\mathrm{XeF}}_6$ is

Match List - I with List - II.

Choose the correct answer from the options given below

Arrange the following in increasing order of their covalent character.

(A) ${\mathrm{CaF}}_2$

(B) ${\mathrm{CaCl}}_2$

(C) ${\mathrm{CaBr}}_2$

(D) ${\mathrm{CaI}}_2$

Choose the correct answer from the options given below.

Amongst the following, the number of oxide(s) which are paramagnetic in nature is

${\mathrm{Na}}_2\mathrm{O}, {\mathrm{KO}}_2, {\mathrm{NO}}_2, {\mathrm{N}}_2\mathrm{O}, {\mathrm{ClO}}_2, \mathrm{NO}, {\mathrm{SO}}_2, {\mathrm{Cl}}_2\mathrm{O}$

According to $\mathrm{MO}$ theory, number of species/ions from the following having identical bond order is____

${\mathrm{CN}}^{-},{\mathrm{NO}}^{+},{\mathrm{O}}_2,{\mathrm{O}}_2^{+},{\mathrm{O}}_2^{2+}$

Match List-I with List-II

The number of molecule(s) or ion(s) from the following having non-planar structure is______.

${\mathrm{NO}}_3^{-},{\mathrm{H}}_2{\mathrm{O}}_2,{\mathrm{BF}}_3,{\mathrm{PCl}}_3,{\mathrm{XeF}}_4$,

${\mathrm{SF}}_4,{\mathrm{XeO}}_3,{\mathrm{PH}}_4^{+},{\mathrm{SO}}_3,{\left[\mathrm{Al}{\left(\mathrm{OH}\right)}_4\right]}^{-}$

The number of inter halogens from the following having square pyramidal structure is

${\mathrm{ClF}}_3, {\mathrm{IF}}_7, {\mathrm{BrF}}_5, {\mathrm{BrF}}_3, {\mathrm{I}}_2{\mathrm{Cl}}_6, {\mathrm{IF}}_5, \mathrm{ClF}, {\mathrm{ClF}}_5$