Question
Chemistry Question on Chemical bonding and molecular structure
Consider the following compounds/species:
i) 
ii) 
iii)
iv)
v)
vi)
vii)
The number of compounds/species which obey Huckel's rule is _____
A
5
B
4
C
6
D
2
Answer
4
Explanation
Solution
Huckel's rule states that compounds (i), (ii), (v), and (vii) follow the pattern of (4n + 2)π electrons.
So the correct answer is 4.