JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Analyzing +4 | -1

Which of the following ions is most unlikely to exist?

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Correct option: A

{Li}^{-}

The correct answer is A (Li-) because lithium is an electropositive metal and does not readily form anions.

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\mathrm{O}, \mathrm{O}^{2-}, \mathrm{F}

\mathrm{F}^{-}