Statement - I : In HX, stability decreases down the group
Statement - II : Bond dissociation enthalpy order of HX is H-F > H-Cl > H-Br > H-I

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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 A.

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Detailed Solution

There is a large difference between electronegativity of H and F, so the bond is stronger. As we go down the group, the difference between electronegativity decreases and therefore, bond dissociation energy also decreases.

Bond dissociation energy also influences stability of HX.

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