Question

Aromaticity question

Answer 1

Attached here

Answer 2

@taramgrant0543664

Answer 3

Another one about aromaticity:

Answer 4

Last one got cut out choice D second question:

Answer 5

For the second question which one of those isn't aromatic

Answer 6

Are you familiar with hückles rule?

Answer 7

Sorry @Photon336 i was at work all day!
So for the second one (the ones with the crown compounds) if you look at the Huckel's rule which is 4n+2 the one that doesn't follow is B which follows the 4n rule so it's non aromatic.

Answer 8

As for the first I'm stuck. A follows the 4n rule but I looked it up and it said that it was aromatic so I don't really know for that one. B I'm pretty sure that one is aromatic as well but it could be that one. C I don't think it's that one cause it has the overlapping p orbitals because I'm assuming at the top of the point is a pair of lone electrons. And D follows the 4n+2 rule unless I managed to count wrong which I definitely could have.

Answer 9

hey I am totally new to this . But can I try one? For te 1st one I think it is the answer A is it correct?

Answer 10

@Rushwr im pretty sure A is the correct answer as it doesn't follow Huckel's rule of 4n+2 it goes by the 4n rule meaning it's non aromatic

Answer 11

Yeah that's what I was thinking too. I still haven't learned these!

Answer 12

@taramgrant0543664

Answer 13

http://openstudy.com/users/taramgrant0543664#/updates/55a9d8e5e4b038ffab0bb4f7
I made a small tutorial about aromaticity if you want to check it out

Answer 14

Thank you so much @taramgrant0543664

Answer 15

No problem!!!

Answer 16

We can rule D out for sure right away because it follows 4n+2 rule, it's cyclic planar, and fully conjugated system.

Answer 17

I think C would be aromatic because 4n+2 n =1, and those electrons participate in the pi system. also that's cyclic conjugated and planar.