Which of the following species has four lone pairs of electrons?

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C l^{-}

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Solution

The correct option is C $C l^{-}$
Outer electronic configuration of $C l = 3 s^{2} 3 p_{x}^{2} 3 p_{y}^{2} 3 p_{z}^{1},$
Outer electronic configuration of $C l^{-} = 3 s^{2} 3 p_{x}^{2} 3 p_{y}^{2} 3 p_{z}^{2},$ i.e., 4 lone pair of electrons.

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