JEE Main 2017 Solved Paper Solved Paper

Section: Chemistry

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Question : 90 of 90

Marks: +1, -0

The group having isoelectronic species is :-

[Main 2017]

O2−,F−,Na+,Mg2+
O−,F−,Na,Mg+
O2−,F−,Na,Mg2+
O−,F−,Na+,Mg2+

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