I don't have the answer key. I'm getting C.
I want to verify
C is right
Yes. 4.2 thanks.
C is aromatic
A and D is anti aromatic ,B is non aromatic.
NEST 2007-10 doesn’t have answer key.
I think I got the key for 2010 but not quite sure. You could match the questions and see.
I know about the answer key problem, post your doubts we all will help ya.
Why is B non aromatic?
There is a sp3 carbon in B. So, The structure is not planar, and there is no cyclic delocalisation of electrons in B.