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Amines — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryAmines1 Mark
MCQ
What is the expected geometry of $\ce{CH_3- NH - CH_3}\ ?$
  • A
    Square planar
  • B
    Trigonal planar
  • ✓
    Trigonal pyramidal
  • D
    Trigonal bipyramidal
✓

Answer

Correct option: C.
Trigonal pyramidal
$\ce{CH_3 - NH - CH_3}$ is an amine in which two hydrogen atoms are replaced by methyl groups.
The hybridisation of $N$ atom of amines is same as that of ammonia, and is also expected to have a pyramidal geometry, with $N$ at the apex and the groups $\ce{CH_3, H}$ and $\ce{CH_3}$ occupying the corners of a trigonal base.

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