JEE Main Chemistry — Organic Chemistry previous year questions with solutions.
 The alkene formed as a major product in the above elimination reaction is
The structure of the compound that gives a tribromo derivative on treatment with bromine water is
The structure of the major product formed in the following reaction is 
$$ \mathrm{CH}_3 \mathrm{Br}+\mathrm{Nu}^{-} \longrightarrow \mathrm{CH}_3-\mathrm{Nu}+\mathrm{Br}^{-} $$ The decreasing order of the rate of the above reaction with nucleophiles $\left(\mathrm{Nu}^{-}\right) \mathrm{A}$ to $\mathrm{D}$ is $\left[\mathrm{Nu}^{-}=(\mathrm{A}) \mathrm{PhO}^{-}\right.$, (B) $\mathrm{AcO}^{-}$, (C) $\mathrm{HO}^{-}$, (D) $\left.\mathrm{CH}_3 \mathrm{O}^{-}\right]$
Fluorobenzene $\left(\mathrm{C}_6 \mathrm{H}_5 \mathrm{~F}\right)$ can be synthesized in the laboratory
Phenyl magnesium bromide reacts with methanol to give
The pyrimidine bases present in DNA are
The term anomers of glucose refers to
Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces
Among the following the one that gives positive iodoform test upon reaction with $\mathrm{I}_2$ and $\mathrm{NaOH}$ is
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2-fluoroethanol is
Acid catalyzed hydration of alkenes except ethene leads to the formation of
Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as
The best reagent to convert pent -3- en-2-ol into pent -3-en-2-one is
The reaction  is fastest when X is
Alkyl halides react with dialkyl copper reagents to give
The decreasing order of nucleophilicity among the nucleophiles 
2 methylbutane on reacting with bromine in the presence of sunlight gives mainly
Tertiary alkyl halides are practically inert to substitution by $\mathrm{S}_{\mathrm{N}}{ }^2$ mechanism because of
Elimination of bromine from 2-bromobutane results in the formation of-
Due to the presence of an unpaired electron, free radicals are:
Among the following acids which has the lowest $\mathrm{pK}_{\mathrm{a}}$ value
Which one of the following methods is neither meant for the synthesis nor for separation of amines?
Amongst the following the most basic compound is