Which of the following statements given below is incorrect?

O N F

is isoelectronic with

O_{2} N^{-}

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O F_{2}

is an oxide of fluorine

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C l_{2} O_{7}

is an anhhydride of perchloric acid

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O_{3}

molecule is bent.

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Solution

The correct option is B $O F_{2}$ is an oxide of fluorine
Option B. Is incorrect because $O F_{2}$ is a fluoride of oxygen because electronegativity of fluorine is more than that of oxygen.

No. Of electrons in $O N F$ =24

No. of electrons in $O^{2} N^{-}$ =24

The structure of $O_{3}$ is bent due to lone pair.

$2 H C l O_{4} + h e a t \to C l_{2} O_{7}$ i.e $C l_{2} O_{7}$ is anhydride of perchloric acid.

Hence, the correct option is B.

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