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JIPMER 2014
Exam
JIPMER
Year
2014
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

JIPMER 2014 · Chemistry · Chemical Bonding and Molecular Structure

The correct order of magnitude of bond angles among the compounds...

The correct order of magnitude of bond angles among the compounds CH4,NH3\mathrm{CH}_4, \mathrm{NH}_3 and H2O\mathrm{H}_2 \mathrm{O} isThe correct order of magnitude of bond angles among the compounds CH_4, NH_3 and H_2 O is

Options

  1. ACH4>H2O<NH3\mathrm{CH}_4\gt\mathrm{H}_2 \mathrm{O} \lt \mathrm{NH}_3
  2. BH2O<NH3<CH4\mathrm{H}_2 \mathrm{O} \lt \mathrm{NH}_3 \lt \mathrm{CH}_4
  3. CNH3<CH4<H2O\mathrm{NH}_3 \lt \mathrm{CH}_4 \lt \mathrm{H}_2 \mathrm{O}
  4. DNH3<H2O<CH4\mathrm{NH}_3 \lt \mathrm{H}_2 \mathrm{O} \lt \mathrm{CH}_4

Correct answer

B. H2O<NH3<CH4\mathrm{H}_2 \mathrm{O} \lt \mathrm{NH}_3 \lt \mathrm{CH}_4

Step-by-step solution

Bond angles depend upon number of lone pair (s) of electrons. Higher the number of lone pairs of electrons, lesser the bond angle. The correct order of magnitude of bond angles among the compounds CH_4, NH_3 and H_2 O is
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