Which of the following are ${sp}^{2}$ hybridized species?

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${CO}_{3}^{2 -}$

${NO}_{3}^{-}$

${BF}_{3}$

All are correct

answer is D.

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Detailed Solution

${CO}_{3}^{2 -}$ is carbonate ion, there is two oxygen atoms which has -1 charge on each of them. One of these oxygen atom take a proton (H⁺ ion) and form a -OH group.

NO₃^– is sp² type.

The shape of ${BF}_{3}$ molecule is

Hence, the correct option is D.

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