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P Block Elements question

2006 · Q103
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P Block Elements question

2006 · Q103

NEETChemistryP Block ElementsMCQ+4 / −1
The correct order regarding the electronegativity of hybrid orbitals of carbon is
  1. A
    sp < sp2 < sp3
  2. B
    sp > sp2 < sp3
  3. C
    sp > sp2 > sp3
  4. D
    sp < sp2 > sp3
View written solutionFree

Correct answer: C

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. Naturally 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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