which of the following don't
exist
a)hocl2 b)hobr2 c) hof2 d) pcl5
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options B hobar u understand
Explanation:
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The correct answer to this question is c) HOF₂
In fluorine (F), d orbitals are absent.
So, it shows only one oxidation state as it cannot expand its valency.
The oxidation state it shows is +1, not +3, +5, or +7, which the other group member shows.
The only Oxy-acid which exists of fluorine is HOF.
So, HOCl₂, HOBr₂, and PCl₅ exist; however, HOF₂ doesn't exist.
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