NEET UG 2019 — Organic Chemistry

The most stable carbocation, among the following is

Among the following, the reaction that proceeds through an electrophilic substitution, is:

The reaction that does not give benzoic acid as the major product is

The amine that reacts will Hinsberg's reagent to give an alkali insoluble product is

An alkene $'A'$ on reaction with ${O}_{3}$ and $Zn-{H}_{2}O$ gives propanone and ethanal in equimolar ratio. Additional of $HCl$ to alkene $'A'$ gives $'B'$ as the major product. The structure of product $'B'$ is:

When vapours of a secondary alcohol is passed over heated copper at $573 \mathrm{~K}$, the product formed is

The correct order of the basis strength of methyl substituted amines in aqueous solution is:

The most suitable reagent for the following conversion, is: 

The major products $C$ and $D$ formed in the following reactions respectively are $\mathrm{H}_3 \mathrm{C}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{OC}\left(\mathrm{CH}_3\right)_3 \stackrel{\text { Excess HII }}{\longrightarrow} \mathrm{C}+\mathrm{D}$

The hydrolysis reaction that takes place at the slowest rate, among the following is

The structure of intermediate A in the following reaction, is: 

In the following reaction,  the number of sigma( $\sigma$ ) bonds present in the product $A$ is

The compound that is most difficult to protonate is:

The alkane that gives only one mono-chloro product on chlorination with $\mathrm{Cl}_2$ in presence of diffused sunlight is

The non-essential amino acid among the following is:

The major product of the following reaction is: 

Which structure(s) of proteins remains(s) intact during denaturation process?