Chemical Bonding - Result Question 63

####38. The hybridisation of sulphur in sulphur dioxide is (1986,1M)

(a) sp

(b) sp3

(c) sp2

(d) dsp2

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Solution:

  1. In SO2, the Lewis-dot structure is

O=S¨=O

Electron pairs at S=2(σ-bonds )+1 (lone-pair) =3 sp2 hybridised.

NOTE

π-bonded electrons are not present in hybrid orbitals, therefore not counted in electron pairs. Rather π bonds are formed by lateral overlapping of pure p-orbitals.



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