ABC26IN0059 · Chemical Bonding
Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: Chemical Bonding – General · Exam: CSIR-NET DEC 2012 · Marks: 2 · Difficulty: Easy
Which ones among $\mathrm{CO}_{3}^{2-}, \mathrm{SO}_{3}, \mathrm{XeO}_{3}$, and $\mathrm{NO}_{3}^{-}$, have planar structure?
(a)$\mathrm{CO_3^{2-}}$, $\mathrm{SO_3}$, and $\mathrm{XeO_3}$
(b)$\mathrm{SO}_{3}, \mathrm{XeO}_{3}$, and $\mathrm{NO}_{3}{ }^{-}$
(c)$\mathrm{CO_3^{2-}}$, $\mathrm{XeO_3}$, and $\mathrm{NO_3^{-}}$
(d)$\mathrm{CO}_{3}^{2-}, \mathrm{SO}_{3}$, and $\mathrm{NO}_{3}^{-}$
Answer
Explanation
$\mathrm{CO_3^{2-}}$: $\mathrm{sp^{2}}$-hybridization (Trigonal planar) $\mathrm{SO_3}$: $\mathrm{sp^{2}}$-hybridization (Trigonal planar) $\mathrm{XeO_3}$: sp-hybridization. (Trigonal pyramidal) $\mathrm{NO_3^{-}}$: $\mathrm{sp^{2}}$-hybridization (Trigonal planar) $\mathrm{CO_3^{2-}}$, $\mathrm{SO_3}$, and $\mathrm{NO_3^{-}}$, have planar structure.
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