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Amines — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryAmines2 Marks
Question
Explain the structure of amine compounds by drawing a diagram.
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Answer

→Like ammonia, nitrogen atom of amines is trivalent and carries an unshared pair of electrons.
→Nitrogen orbitals in amines are therefore, SP3 hybridized and the geometry of amines is pyramidal.
→Each of the three SP³ hybridized orbitals of nitrogen overlap with orbitals of hydrogen or carbon depending upon the composition of the amines.
→The fourth orbital of nitrogen in all amines contains an unshared pair of electrons.
→The angle C-N-E (Where E is Cor H) is less than 109.50
→For instance, it is 1080 in case of trimethylamine as in the figure below:
Image

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