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Identify the correct order of the size of the following:

NEET UG 2007 — Chemistry Inorganic Chemistry

2007mcqeasy

Identify the correct order of the size of the following:

Official previous-year question

Held on 30 Apr 2007 · Verified 9 Jul 2026.

Options

  1. A

    Ca2+<K+<Ar<Cl−<S2−\mathrm{Ca}^{2+} < \mathrm{K}^{+} < \mathrm{Ar} < \mathrm{Cl}^{-} < \mathrm{S}^{2-}Ca2+<K+<Ar<Cl−<S2−

  2. B

    Ar<Ca2+<K+Cl−<<S2−\mathrm{Ar} < \mathrm{Ca}^{2+} < \mathrm{K}^{+} \mathrm{Cl}^{-}< < \mathrm{S}^{2-}Ar<Ca2+<K+Cl−<<S2−

  3. C

    Ca2+<Ar<K+<Cl−<S2−\mathrm{Ca}^{2+} < \mathrm{Ar} < \mathrm{K}^{+} < \mathrm{Cl}^{-} < \mathrm{S}^{2-}Ca2+<Ar<K+<Cl−<S2−

  4. D

    Ca2+<K+<Ar<S2−<Cl−\mathrm{Ca}^{2+} < \mathrm{K}^{+} < \mathrm{Ar} < \mathrm{S}^{2-} < \mathrm{Cl}^{-}Ca2+<K+<Ar<S2−<Cl−

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