AP EAMCET Engineering 22 Sep 2020 Shift 2 Paper

Section: Chemistry

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Question : 132 of 160

Marks: +1, -0

Which of the following are isoelectronic species ?

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

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