How would you account for the following?

The oxidising power of oxoacids of chlorine follows the order: ${\mathrm{HCIO}}_4 < {\mathrm{HCIO}}_3 < {\mathrm{HClO}}_2 < \mathrm{HCIO}$

How would you account for the following?

${\mathrm{XeF}}_2$ has a linear structure not a bent angular structure.
 

Complete the following chemical reaction.

${\mathrm{I}}_2 + \mathrm{conc}. {\mathrm{HNO}}_3 \stackrel{ }{\to }$

Complete the following chemical reaction.

${\mathrm{S}}_8 + \mathrm{Conc}.{\mathrm{HNO}}_3 \stackrel{ }{\to }$
 

 What happens, when chlorine gas is passed into a solution of hot and concentrated $\mathrm{NaOH}$?

Explain the following:

$\mathrm{Xe}$ shows$+8$ oxidation state (e.g. ${\mathrm{XeO}}_4$) but ${\mathrm{XeF}}_8$ is not known why?