Which of the following sets


Which of the following sets contain only isoelectronic ions?

(i) Zn2+, Ca2+, Ga3+, Al3+

(ii) K+, Ca2+, Sc3+, Cl

(iii) P3-, S2-, Cl, K+

(iv) Ti 4+, Ar, Cr3+, V5+


Option (ii) K+, Ca2+, Sc3+, Cl and (iii) P3-, S2-, Cl, K+ are the answers.

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