Question

Assertion : Amongst the oxo acids of halogens, HOCI, HOBr and HOI , the HOI is the most acidic acid.
Reason :The conjugate base stability is `CIO gt BrO gt IO`.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer 1

Correct Answer - d
Order of acidic character is `HCIO gt HBrO gt HIO` as the order of the stabillity of their conjugate base is `CIO^(-) gt BrO gt IO^(-)` , because Cl being small size atom can from effective `pi`-bond with oxygen.