A) \[HCl{{O}_{3}}\text{ }<\text{ }HCl{{O}_{4}}\text{ }<\text{ }HCl{{O}_{2}}\text{ }<\text{ }HClO\]
B) \[~HClO\text{ }<\text{ }HCl{{O}_{2}}\text{ }<\text{ }HCl{{O}_{3}}\text{ }<\text{ }HCl{{O}_{4}}\]
C) \[HCl{{O}_{2}}\text{ }<\text{ }HClO\text{ }<\text{ }HCl{{O}_{3}}\text{ }<\text{ }HCl{{O}_{4}}\]
D) \[HCl{{O}_{4}}\text{ }<\text{ }HCl{{O}_{2\text{ }}}<\text{ }HClO\text{ }<\text{ }HCl{{O}_{3}}\]
Correct Answer: B
Solution :
Acidic strength \[\propto EN\propto +ve\,O.S.\] \[\underset{+1}{\mathop{HCl}}\,O<\underset{+3}{\mathop{HCl{{O}_{2}}}}\,<\underset{+5}{\mathop{HCl{{O}_{3}}}}\,<\underset{+7}{\mathop{HCl{{O}_{4}}}}\,\]
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