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AP EAMCET201920 Apr 2019Morning ShiftChemistryChemical Bonding and Molecular StructureActual

Which one of the following has maximum number of hybrid orbitals?

Options

  1. A( C ₆ H ₆ )
  2. B( ( CH ₃ )₄ C )
  3. C( ( CH ₃ )₂ C = O )
  4. D( CH ₃- CH = CH - CN )

Correct answer

B. ( ( CH ₃ )₄ C )

Step-by-step solution

Hydrogen atom does not show hybridisation, thus number of hybrid orbitals in : (a) ( C ₆ H ₆ ) All six C-atoms show (s p^2 )-hybridisation (i.e. 3-orbitals by each ( C )-atom) ( ) Total number of hybrid orbitals (=6 3=18 ) (b) ( ( C H ₃ )₄ C A l l ) five ( C )-atoms show (s p^3 )-hybridisation (i.e. 4-orbitals by each C-atom). ( ) Total number of hybrid orbitals (=5 4=20 ). (c) ( ( CH ₃ )₂ C = O ) Two C-atoms belong to ( CH ₃ ) group show (s p^3 )-hybridisation (i.e. 4-orbital by each C-atom). One C-atom, bonded wi

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