Practice question · Multiple choice
Which arrangement of electron domains gives ideal angles of both and ?
Hints
- One arrangement has two inequivalent kinds of position.
- Equatorial positions sit at 120 degrees to each other, axial ones at 90 degrees to the equator.
Show the answer
C. Trigonal bipyramidal
Why
The trigonal bipyramid is the only common arrangement with two distinct site types: three equatorial positions apart, and two axial positions from the equatorial plane.
Practise Molecular Geometry and Polarity
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