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Question

Acidic strength of HOBr is  than\as acidic strength of HOI.


A
greater
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B
less
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C
similar
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Solution

The correct option is A greater
Acidic strength stablity of anion 
1. HOBr has a greater extent of back bonding, as oxygen back bonds with Br, creating a partial positive change on oxygen. Hence it(oxygen) snatches away electrons of the acidic H, thus releasing the H+ ion.
2. Charge density of OBr is more dispersed than OI thus HOBr is more acidic than HOI.

Chemistry

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