MCQ
Select the compound in which chlorine is assigned the oxidation number $ +5$
- A$HCl{O_4}$
- B$HCl{O_2}$
- ✓$HCl{O_3}$
- D$HCl$
$1 + x - 2 \times 3 = 0$; $x = 6 - 1 = + 5$.
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$\mathrm{BrO}_{4}^{-} \stackrel{1.82 \mathrm{V}}{\longrightarrow} \mathrm{BrO}_{3}^{-} \stackrel{1.5 \mathrm{V}}{\longrightarrow} \mathrm{HBrO}$$\stackrel{1.0652 \mathrm{V}}{\longrightarrow} \mathrm{Br}_{2} \stackrel{1.595 \mathrm{V}}{\longrightarrow} \mathrm{Br}^{-}$
Then the species undergoing disproportionation is
Statement $II :$ there is no change when undergoing boiling
Statement $III :$ reverse of $I$ and $II$
Statement $IV :$ dimer formation in freezing and boiling state