Organic Chemistry Some Basic Principles and Techniques - Result Question 10

####11. The correct order regarding the electronegativity of hybrid orbitals of carbon is

[2006]

(a) sp>sp2>sp3

(b) sp<sp2>sp3

(c) sp<sp2<sp3

(d) sp>sp2<sp3

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Solution:

  1. (a) Among the three given hybrid orbitals, sp hybrid orbital is most electronegative.

Contribution of s in sp hybrid orbital is maximum (50 so this orbital is closer to nucleus. It will have greater tendency to pull electron towards it. Hence it becomes more electronegative and sp3 becomes least electronegative as it has only 25 s-character.



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