1.

Which of the following statements is not correct regarding hybridisation ?

Answer»

1. The hybridised orbitals are always equivalent in energy and shape
2. The hybrid orbitals are more effective in forming stable `SIGMA` - and `pi` - bonds than the pure atomic orbitals
3. Promotion is not ESSENTIAL condition prior to hybridisation
4. The filled orbitals can ALSO PARTICIPATE in hybridisation

Answer :B


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