Identify the compound which has the maximum n | vedclass

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

Question

(D) Key Idea: The number of no-bond resonance (hyperconjugation) structures is equal to the number of $\alpha$-hydrogen atoms present on the carbon at

Vedclass · Accepted Answer

Toluene $(C_6H_5-CH_3)$

Vedclass · Answer

(D) Key Idea: The number of no-bond resonance (hyperconjugation) structures is equal to the number of $\alpha$-hydrogen atoms present on the carbon atom directly attached to the benzene ring.$(a)$ tert-Butylbenzene: The $\alpha$-carbon has $0$ $H$-atoms. Number of hyperconjugation structures = $0$.$(b)$ Ethylbenzene: The $\alpha$-carbon $(CH_2)$ has $2$ $H$-atoms. Number of hyperconjugation structures = $2$.$(c)$ Isopropylbenzene: The $\alpha$-carbon $(CH)$ has $1$ $H$-atom. Number of hyperconjugation structures = $1$.$(d)$ Toluene: The $\alpha$-carbon $(CH_3)$ has $3$ $H$-atoms. Number of hyperconjugation structures = $3$.Since toluene has the maximum number of $\alpha$-hydrogen atoms $(3)$,it has the maximum number of no-bond resonance structures. Hence,option $(d)$ is the correct answer.

Identify the compound which has the maximum number of no-bond resonance (hyperconjugation) structures.

Similar Questions

Arrange the following compounds in decreasing order of reactivity towards $EAS$ (electrophilic aromatic substitution).

The decreasing order of $-I$ (inductive) effect power for the given groups is:
$A. -CN$
$B. -NO_2$
$C. -NH_2$
$D. -F$

The decreasing order of stability of the following anions is:

In which of the following groups is the $(-M)$ effect observed?

The correct stability order of the following species is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module