The correct increasing order of the ionic radii is (Jee Main 2023)

Chemistry · JEE Main · NTA Exams — Classification of Elements and Periodicity in Properties

1. \(\mathrm{Cl}^{-}<\mathrm{Ca}^{2+}<\mathrm{K}^{+}<\mathrm{S}^{2-}\)
2. \(\mathrm{K}^{+}<\mathrm{S}^{2-}<\mathrm{Ca}^{2+}<\mathrm{Cl}^{-}\)
3. \(\mathrm{S}^{2-}<\mathrm{Cr}^{-}<\mathrm{Ca}^{2+}<\mathrm{K}^{+}\)
4. \(\mathrm{Ca}^{2+}<\mathrm{K}^{+}<\mathrm{Cl}^{-}<\mathrm{S}^{2-}\)

Answer

(D) Ca ^ 2+ < K ^ + < Cl ^ - < S ^ 2-

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