Question

. How many pi (n) electrons are there in the following molecule?
(a) 4
(b) 6
(c) 8
(d) 10

Right Ans is d)10 but explain why?
Don't Ans without any explanation...​

Answer 1

Answer:

b.) 10

π - electrons = (4n+2) π

= (4×2 +2) π electrons

= 8+2 π electrons

= 10 electrons

Answer 2

Answer:

d) 10

Explanation:

When a heteroatom(other than carbon and hydrogen) is a part of double bond, it's lone pair occupy hybridised orbitals, so it doesn't delocalizes.Whereas when a heteroatom isn't a part of double bond, it's lone pair occupy unhybridised orbitals, so it easily delocalize.

so in this case we also need to consider the lone pairs of oxygen.All the best.