Which does not form polyhalide ion like ${X_{3}}^{-}$ ?

Fluorine

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Chlorine

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Bromine

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Iodine

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Solution

The correct option is A Fluorine
Due to absence of d-orbitals, fluorine, does not form polyhalide ions while other halogens form polyhalides of the type $I_{3}^{-}, B r_{3}^{-}, I_{5}^{-}$ etc.
Hence option A is correct.

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Similar questions

Which of the polyhalide ions is not known?

Consider the following statements:

$S_{1}$ : Fluorine does not form any polyhalide because it does not have d-orbitals in valence shell.

$S_{2}$ : In $C l F_{3}$ , the three lone pairs of electrons occupy the equatorial position.

$S_{3}$ : In $B_{2}$ and $N_{2}$ molecules, mixing of s- and p- atomic orbitals takes place.

Select the correct statements.

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