Statement I: HF₂ ^–ions exist in the solid & liquid state but HCl₂ ^– ions do not exist.
Statement II: Fluorine forms hydrogen bond but chlorine can not.

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Statement I and Statement II are true.

Statement I is false and Statement II is true.

Statement I is true and statement II is false.

Statement I and Statement II are false.

answer is A.

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Detailed Solution

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Due to intermolecular H-bonding in between HF molecules, HF₂^- can exist.
But no such H-bonding is possible between HCl molecules due to larger size of Chlorine atoms.
I and II are true

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