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Question No. 75
Which one of the following set of ions represents a collection of
isoelectronic species?
Ba2+ Sr2+ K+, Ca2+
N-3,0-2, 7,5-2
Lit, Na+, Mg2+, Ca2+
Kt, cr, Ca2+, Sc3+
Marks: +4 / -1​

Answer 1

Answer:

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