In the structure of $C l F_{3}$ , the number of lone pairs of electrons on central atom $C l$ is:

four

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one

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three

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two

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Solution

The correct option is D two
In the structure of $C l F_{3}$ , the number of lone pairs of electrons on central atom Cl is two. Cl has 7 valence electrons out of which 3 are involved in bond formation with 3 F atoms. $7 - 3 = 4$ valence electrons remains in the form of 2 lone pairs of electrons.

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