Haryana Gram Sachiv 10 Jan 2021 Shift 1 Paper

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Question : 39 of 90

Marks: +1, -0

Iso-electronic ions among the following.

N^3-, O^2-, F^-
N^3-, O2-, Ca²⁺
N^3-, S^2-, Br^-
S^2-, N^3-, Cl^-

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