Statement - I : IF₇ is the highest numbered inter halogen compound
Statement - II : Radius ratio between I and F in IF₇ is minimum

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Both statements I and II are correct

Statement-I is correct and statement-II is incorrect

Statement-I is incorrect and statement-II is correct

Both statements I and II are incorrect

answer is B.

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Detailed Solution

Statement I is correct. IF₇ is the highest numbered interhalogen compound, as it contains seven fluorine atoms bonded to one iodine atom.

Statement II is incorrect. The radius ratio between iodine and fluorine in IF₇is not the minimum.

The radius ratio is the ratio of the radii of the cation to the anion in an ionic compound. In the case of IF₇, it is a covalent compound, not an ionic compound. Therefore, the concept of radius ratio does not apply here.

InIF₇, the iodine atom forms seven sigma bonds with the seven fluorine atoms, resulting in a pentagonal bipyramidal molecular geometry. The fluorine atoms are more electronegative than the iodine atom, so they pull the electron density away from the iodine atom. This causes the iodine atom to appear smaller in size than it would be in a molecule without the fluorine atoms.

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