In graphite and diamond, the percentage of p-characters of the hybrid orbitals in hybridization respectively…

In graphite and diamond, the percentage of p-characters of the hybrid orbitals in hybridization respectively, are
  1. 33 and 25
  2. 67 and 75
  3. 50 and 75
  4. 33 and 75

Solution

Graphite Diamond
sp2 hybridisation sp3 hybridisation
P=23×100=67% P=34×100=75%
For sp2: %P character
P1P=cosθ
P1P=cos120=0.5
P1=0.5P
1.5P=1
P=23
%P=23×100=66.67%
For sp3: %P character
P1P=cos109'28
P1P=0.33
P1P=34
%P=75%
 
 

Asked in: JEE Main 2018 (15 Apr)

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