Which of the following statements is correct regarding halogens?

Select the correct set of species which cannot react with water but react with $NaOH$:
$(i) \, NO_2$ $(ii) \, P_4$ $(iii) \, Al$ $(iv) \, I_2$

With respect to hypochlorite,chlorate,and perchlorate ions,choose the correct statement$(s)$.
$A.$ The hypochlorite ion is the strongest conjugate base.
$B.$ The molecular shape of only the chlorate ion is influenced by the lone pair of electrons on $Cl$.
$C.$ The hypochlorite and chlorate ions disproportionate to give rise to an identical set of ions.
$D.$ The hypochlorite ion oxidizes the sulfite ion.

Of the four oxyacids of chlorine,the strongest oxidising agent in dilute aqueous solution is:

Mark the element which displaces three halogens from their compounds.

Which of the following arrangements does not represent the correct trend indicated against it?