Multiple choice

Diagonal hybridisation is the term used for

  1. sp3d2 hybridisation

  2. 'sp' hybridisation

  3. sp2 hybridisation

  4. sp3 hybridisation
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B Correct answer
Explanation

In this type of hybridisation one '2s' and one '2px' orbitals get hybridised to form two equivalent orbitals called 'sp' hybrid orbitals. The remaining 2py and 2pz do not take part in hybridisation. The two unhybridised orbitals are directed along the 'y' and 'z' axes while the two hybridised orbitals are directed towards the 'x' axis. This hybridisation is often known as diagonal hybridisation as the two hybridised orbitals are at 180o due to mutual repulsion of their electron clouds. Each hybrid orbital has equal 's' and 'p' character.

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