Practice question · Select all that apply
Which species have an -hybridised central atom?
Hints
- Count electron domains: four domains means sp3, and lone pairs count.
- Ethyne has only two domains on each carbon, so it cannot be sp3.
Show the answer
- A. Water
- B. Ammonia
- C. Methane
Why
Methane (4 bonds), ammonia (3 bonds + 1 lone pair) and water (2 bonds + 2 lone pairs) all have four domains and are . Ethyne’s carbons carry only two domains each and are .
Practise Hybridisation and Molecular Orbitals
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