Question

Question No. 8
How many r- electrons are
involved in benzene molecule?
Answer
A. O TWO
B.
Four
C.
Six
D.
Eight​

Answer 1

Answer:

c,6

Explanation:

It can be determined by the Huckel's Rule (4n+2 rule):

In order to be aromatic, a molecule must have a certain

number of pi electrons (electrons with pi bonds, or lone

pairs within p orbitals) within a closed loop of parallel,

adjacent p orbitals.

For benzene, there is 1 aromatic compound .

Then n = 1

From Huckel’s rule

Number of pi electrons = 4n + 2

=4x1 + 2

= 6

The number of π−electronsπ−electrons in benzene

molecule is 6.

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Answer 2

Answer:

C) Six r- electRon's are involved in benzene molecule