Question

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 chlorate ion is influenced by the lone pair of electrons of $Cl$
• C. The hypochlorite and chlorate ions disproportionate to give rise to identical set of ions
• D. The hypochlorite ion oxidizes the sulfite ion

Answer 1

Answer: (A), (B), (D)

$\underset{\text{most acidic}}{HClO_4} > HClO_3 > \underset{\text{least acidic}}{HOCl}$
Conjugate base
$\underset{\text{least basic}}{ClO_4^-} < ClO_3^- < \underset{\text{most basic}}{OCl^-}$
$CIO ^{-}+ SO _{3}^{-2} \rightarrow Cr ^{-}+ SO _{4}^{-2}$
$3 ClO ^{-} \rightarrow 2 Cr ^{-}+ ClO _{3}^{-}$
$4 ClO _{3}^{-} \rightarrow Cl ^{-}+3 ClO _{4}^{-}$