Of the following compounds, which one is the | vedclass

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(A) The strength of oxo-acids increases with the increase in the oxidation number of the central atom. For $HClO_{3}$, the oxidation number of $Cl$ is

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$HClO_{3}$

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(A) The strength of oxo-acids increases with the increase in the oxidation number of the central atom. For $HClO_{3}$, the oxidation number of $Cl$ is $+5$. For $HClO_{2}$, the oxidation number of $Cl$ is $+3$. For $HOCl$, the oxidation number of $Cl$ is $+1$. For $HOBr$, the oxidation number of $Br$ is $+1$. Since $HClO_{3}$ has the highest oxidation number of the central atom, it is the strongest Bronsted acid among the given compounds.

Of the following compounds, which one is the strongest Bronsted acid in an aqueous solution?

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Considering the following reactions,which pair of reactions shows that water has basic properties?
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$(ii) \ NH_3 + H_2O \rightleftharpoons NH_4^+ + OH^-$
$(iii) \ HCl + H_2O \rightleftharpoons Cl^- + H_3O^+$

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