The P Block Elements Ques 64
64. Among the following, the correct order of acidity is
[2016]
(a) $\mathrm{HClO}_3<\mathrm{HClO}_4<\mathrm{HClO}_2<\mathrm{HClO}$
(b) $\mathrm{HClO}<\mathrm{HClO}_2<\mathrm{HClO}_3<\mathrm{HClO}_4$
(c) $\mathrm{HClO}_2<\mathrm{HClO}<\mathrm{HClO}_3<\mathrm{HClO}_4$
(d) $\mathrm{HClO}_4<\mathrm{HClO}_2<\mathrm{HClO}<\mathrm{HClO}_3$
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Answer:
Correct Answer: 64.(b)
Solution: (b) Acidic strength increases as the oxidation number of central atom increases.
$ \mathrm{HClO}<\mathrm{HClO}_2<\mathrm{HClO}_3<\mathrm{HClO}_4 $
$+1 \quad \quad +3 \quad \quad \quad +5 \quad \quad \quad +7$
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