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Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding and Molecular Structure1 Mark
Question
Which of the following has maximum bond angle?
$\text{H}_2\text{O},\text{CO}_2,\text{NH}_3,\text{CH}_4$
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Answer

$\mathrm{CO}_2$ has the maximum bond angle of $180^{\circ}$ because it is linear molecule.
$\mathrm{H}_2 \mathrm{O}$ has bond angle $104.5^{\circ}$, bent molecule with two lone pair of electrons.
$\mathrm{NH}_3$ has bond angle $107^{\circ}$, pyramidal shape with one lone pair of electrons.
$\mathrm{CH}_4$ has bond angle $109.5^{\circ}$, tetrahedral, with four bonded pair of electrons.

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