Which of the following combinations contains only isoelectronic species?

N^3- , O^2- ,Cl^- , Ne

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F^- , Ar, S^2- , Cl^-

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P^3- , S^2- , Cl^- , Ar

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N^3- , F^- , O^2- , Ar

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Solution

The correct option is C P^3- , S^2- , Cl^- , Ar
$P^{3 -}, S^{2 -}, C l^{-}$ are iso-electronic with Ar.

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Similar questions

Which of the following sets contain only isoelectronic ions?
(i) $Z n^{2 +}, C a^{2 +}, G a^{3 +}, A l^{3 +}$

(ii) $K^{+}, C a^{2 +}, S c^{3 +}, C l^{-}$

(iii) $P^{3 -}, S^{2 -}, C l^{-}, K^{+}$

(iv) $T i^{4 +}, A r, C r^{3 +}, v^{5 +}$

S^{2 -}, N a^{+}, C a^{2 +}, C l^{-}

S^{2 -}, N a^{+}, C a^{2 +}, C l^{-}

i) N e i i) O^{2 -} i i i) M g^{2 +} i v) F

v) A l^{3 +} v i) C l^{-} v i i) K v i i i) N a

K^{+}, C l^{-}, C a^{2 +}, S^{2 -}

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