Among the given organic compounds,the total n | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) To determine if a compound is aromatic,it must be cyclic,planar,fully conjugated,and follow $H$ückel's rule ($4n+2$ $\pi$ electrons).$(A)$ Decalin

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(B) To determine if a compound is aromatic,it must be cyclic,planar,fully conjugated,and follow $H$ückel's rule ($4n+2$ $\pi$ electrons).$(A)$ Decalin derivative: Not fully conjugated,non-aromatic.$(B)$ Benzylcyclohexene: The benzene ring is aromatic,but the whole molecule is not considered a single aromatic system due to the $sp^3$ carbon bridge. However,in the context of identifying aromatic components,the benzene ring is aromatic.$(C)$ Indene anion (indenyl anion): The cyclopentadienyl ring is conjugated with the benzene ring,and the lone pair on the $sp^3$ carbon becomes part of the $10$ $\pi$ electron system $(n=2)$,making it aromatic.$(D)$ Fluorenyl anion: It has $14$ $\pi$ electrons $(n=3)$,is planar,and fully conjugated,making it aromatic.Thus,compounds $(C)$ and $(D)$ are aromatic. The total number is $2$.

Among the given organic compounds,the total number of aromatic compounds is $....$.

Similar Questions

Benzene on treatment with a mixture of conc. $HNO_3$ and conc. $H_2SO_4$ at $100 \ ^oC$ gives

Benzene can be obtained in the reaction:

The major products $P$ and $Q$ formed in the following reaction schemes are:

Which compound contains delocalized electrons?

Which of the following is not an aromatic compound?

Vedclass Test Series

Exam Paper Generator

Online Exam Module