Statement - I : Pka value of HF is positive
Statement - II : HF is strongest acid among HX

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Both statements I and II are correct

Statement-I is incorrect and statement-II is correct

Both statements I and II are incorrect

Statement-I is correct and statement-II is incorrect

answer is C.

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Detailed Solution

Among the halogen acids, HI has most negative value of p^Ka (-11.8) as it is the strongest acid.
The H-F bond is a strong one. It is not easily broken. Hence, in dilute aqueous solution, the degree of ionization of HF is small. Hence, it acts as a weak acid.

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