User login
Call 1800-123-2003
Our Schools
SabariGiri Residential School
"Smartindia is the best online tool for school students." Ms Deepa Chandran, Principal Anchal
M. G. M. Model School
"Smartindia is one of the best supplementary education tool for school students." Ms Pooja, Principal
Read More
Demo Video
Ask a Teacher
- CBSE
- ICSE/ISC
- Kerala (English Medium)
-
IGCSE
- All Questions
- Cambridge Pre-Primary 1
- Cambridge Pre-Primary 2
- Cambridge Primary Grade 1
- Cambridge Primary Grade 2
- Cambridge Primary Grade 3
- Cambridge Primary Grade 4
- Cambridge Secondary Grade 5
- Cambridge Secondary Grade 6
- Cambridge Secondary Grade 7
- Cambridge Secondary Grade 8
- Cambridge Secondary Grade 9
- Cambridge Secondary Grade 10
- Cambridge Advanced Grade 11
- Cambridge Advanced Grade 12
WHAT IS HUKEL RULE? |
Huckel rule states that for a compound to exhibit aromatic character ,it should have a conjugated planar cyclic system containing 4n +2 (where n=1,2 ) delocalised -electrons forming a cyclic cloud of delocalised - electrons above and below the plane of the molecule .This is known as Huckel rule of 4n +2 -electrons . |