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Which of the following arrangements represents the increasing order (smallest to largest) of ionic radii of the given species O^2-, S^2-, N^3-, P^3- ?

JEE Main 2014 — Chemistry Inorganic Chemistry

2014mcqeasy

Which of the following arrangements represents the increasing order (smallest to largest) of ionic radii of the given species O2−,S2−,N3−,P3−\mathrm{O}^{2-}, \mathrm{S}^{2-}, \mathrm{N}^{3-}, \mathrm{P}^{3-}O2−,S2−,N3−,P3− ?

Official previous-year question

Held on 12 Apr 2014 · Verified 6 Jul 2026.

Options

  1. A

    O2−<N3−<S2−<P3−\mathrm{O}^{2-} < \mathrm{N}^{3-} < \mathrm{S}^{2-} < \mathrm{P}^{3-}O2−<N3−<S2−<P3−

  2. B

    O2−<P3−<N3−<S2−\mathrm{O}^{2-} < \mathrm{P}^{3-} < \mathrm{N}^{3-} < \mathrm{S}^{2-}O2−<P3−<N3−<S2−

  3. C

    N3<O2−<P3−<S2−\mathrm{N}^3 < \mathrm{O}^{2-} < \mathrm{P}^{3-} < \mathrm{S}^{2-}N3<O2−<P3−<S2−

  4. D

    N3−<S2−<O2−<P3−\mathrm{N}^{3-} < \mathrm{S}^{2-} < \mathrm{O}^{2-} < \mathrm{P}^{3-}N3−<S2−<O2−<P3−

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