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JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Medium

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Analyzing +4 | -1

Which of the following is not iso electronic with

{H}_2 {S}?

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Correct option: B

Oxide ion

Option B (Oxide ion) is not isoelectronic with

{H}_2 {S}

because oxide ion has 10 electrons, while

{H}_2 {S}

has 18 electrons.

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