Consider the following statements;

($\mathrm{I}$) The hybridisation found in cation of solid ${\mathrm{PCl}}_5$ is ${\mathrm{sp}}^3$.

($\mathrm{II}$) In ${\mathrm{AB}}_2{\mathrm{L}}_2$ type, the $\mathrm{BAB}$ bond angle is always greater than the normal tetrahedral bond angle.

($\mathrm{III}$) In ${\mathrm{ClO}}_3^{-}, {\mathrm{NH}}_3$ and ${\mathrm{XeO}}_3$, the hybridisation and the number of lone pairs on the central atoms are the same.

($\mathrm{IV}$) In ${\mathrm{P}}_4$ molecule, there are six $\mathrm{P}-\mathrm{P}$ bonds and four lone pairs of electrons.

Of these statements :

The following molecules/species have been arranged in the order of their increasing bond orders. Identify the correct order.

($\mathrm{I}$) ${\mathrm{O}}_2$;

($\mathrm{II}$) ${\mathrm{O}}_2^{-}$;

($\mathrm{III}$) ${\mathrm{O}}_2^{2-}$;

($\mathrm{IV}$) ${\mathrm{O}}_2^{+}$;

Which of the following molecules / species have the identical bond order and the same magnetic properties?

(I) ${\mathrm{O}}_2^{+}$

(II) $\mathrm{NO}$

(III) ${\mathrm{N}}_2^{+}$

The increasing order of the strength of hydrogen bond in the following mentioned linkages is:

(i) $\mathrm{O}-\mathrm{H}\cdots \mathrm{S}$

(ii) $\mathrm{S}-\mathrm{H}\cdots \mathrm{O}$

(iii) $\mathrm{F}-\mathrm{H}\cdots {\mathrm{F}}^{-}$

(iv) $\mathrm{F}-\mathrm{H}\cdots \mathrm{O}$