JEE Main 2022 — Chemistry Inorganic Chemistry

2022integermedium

The number of molecule(s) or ion(s) from the following having non-planar structure is______.

${\mathrm{NO}}_{3}^{-},{H}_{2}{O}_{2},{\mathrm{BF}}_{3},{\mathrm{PCl}}_{3},{\mathrm{XeF}}_{4}$ ,

${\mathrm{SF}}_{4},{\mathrm{XeO}}_{3},{\mathrm{PH}}_{4}^{+},{\mathrm{SO}}_{3},{[\mathrm{Al}{(\mathrm{OH})}_{4}]}^{-}$

Official previous-year question

Held on 27 Jul 2022 · Verified 6 Jul 2026.

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Solution

The species which have ${\mathrm{sp}}^{2}$ hybridisation with no lone pairs, ${\mathrm{sp}}^{3}{d}^{2}$ hybridisation with two lone pairs are planar molecules.

The number of hybrid orbitals can be calculated as follows,

No.of hybrid orbitals = 1/2(V+M-C+A)

V = number of valence electrons

M = number of monovalent atoms attached to central atom.

C = Number of positive charges on the molecule

A = Number of negative charges on the molecule

${\mathrm{SO}}_{3}$	${\mathrm{sp}}^{2}$	Planar
${\mathrm{BF}}_{3}$	${\mathrm{sp}}^{2}$	Planar
${\mathrm{NO}}_{3}^{-}$	${\mathrm{sp}}^{2}$	Planar
${\mathrm{SF}}_{4}$	${\mathrm{sp}}^{3}d$	Non-Planar
${H}_{2}{O}_{2}$	${\mathrm{sp}}^{3}$	Non-Planar
${\mathrm{PCl}}_{3}$	${\mathrm{sp}}^{3}$	Non-Planar
${[\mathrm{Al}{(\mathrm{OH})}_{4}]}^{-}$	${\mathrm{sp}}^{3}$	Non-Planar
${\mathrm{XeF}}_{4}$	${\mathrm{sp}}^{3}{d}^{2}$	Planar
${\mathrm{XeO}}_{3}$	${\mathrm{sp}}^{3}$	Non-Planar
${\mathrm{PH}}_{4}^{+}$	${\mathrm{sp}}^{3}$	Non-Planar

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Solution

The species which have ${\mathrm{sp}}^{2}$ hybridisation with no lone pairs, ${\mathrm{sp}}^{3}{d}^{2}$ hybridisation with two lone pairs are planar molecules.

The number of hybrid orbitals can be calculated as follows,

No.of hybrid orbitals = 1/2(V+M-C+A)

V = number of valence electrons

M = number of monovalent atoms attached to central atom.

C = Number of positive charges on the molecule

A = Number of negative charges on the molecule

${\mathrm{SO}}_{3}$	${\mathrm{sp}}^{2}$	Planar
${\mathrm{BF}}_{3}$	${\mathrm{sp}}^{2}$	Planar
${\mathrm{NO}}_{3}^{-}$	${\mathrm{sp}}^{2}$	Planar
${\mathrm{SF}}_{4}$	${\mathrm{sp}}^{3}d$	Non-Planar
${H}_{2}{O}_{2}$	${\mathrm{sp}}^{3}$	Non-Planar
${\mathrm{PCl}}_{3}$	${\mathrm{sp}}^{3}$	Non-Planar
${[\mathrm{Al}{(\mathrm{OH})}_{4}]}^{-}$	${\mathrm{sp}}^{3}$	Non-Planar
${\mathrm{XeF}}_{4}$	${\mathrm{sp}}^{3}{d}^{2}$	Planar
${\mathrm{XeO}}_{3}$	${\mathrm{sp}}^{3}$	Non-Planar
${\mathrm{PH}}_{4}^{+}$	${\mathrm{sp}}^{3}$	Non-Planar

JEE Main 2022 — Chemistry Inorganic Chemistry

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JEE Main 2022 — Chemistry Inorganic Chemistry

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Solution

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JEE Main Inorganic Chemistry in other years

More JEE Main Inorganic Chemistry questions

Other Chemistry topics for JEE Main

Physical Chemistry

Organic Chemistry

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