JEE Main Chemistry — Organic Chemistry previous year questions with solutions.
A primary aliphatic amine on reaction with nitrous acid in cold $(273K)$ and there after raising temperature of reaction mixture to room temperature $(298K)$, gives a/an
Which of the following reagents / reactions will convert '$A$' to '$B$'? 
The correct IUPAC name of the following compound is 
Animal starch is the other name of
Which of the following structures are aromatic in nature? 
Choose the correct option for the following reactions. 
The number of ${\mathrm{sp}}^{3}$ hybridised carbons in an acyclic neutral compound with molecular formula ${C}_{4}{H}_{5}N$ is
The correct order of nucleophilicity is
Compound '$P$' on nitration with dil. ${\mathrm{HNO}}_{3}$ yields two isomers $(A)$ and $(B)$. These isomers can be separated by steam distillations. Isomers $(A)$ and $(B)$ show the intramolecular and intermolecular hydrogen bonding respectively. Compound $(P)$ on reaction with conc. ${\mathrm{HNO}}_{3}$ yields a yellow compound '$C$', a strong acid. The number of oxygen atoms is present in compound '$C$'
In the following reaction :  The compounds $A$ and $B$ respectively are
Which of the following is the strongest acid?
Markovnikovs rule is applicable to:
Wurtz reaction is used to prepare
Total number of possible stereoisomers of dimethyl cyclopentane is
The final product '$A$' in the following reaction sequence 
$0.25g$ of an organic compound containing chlorine gave $0.40g$ of silver chloride in Carius estimation. The percentage of chlorine present in the compound is [in nearest integer] (Given: Molar mass of $\mathrm{Ag}$ is $108g{\mathrm{mol}}^{-1}$ and that of $\mathrm{Cl}$ is $35.5g{\mathrm{mol}}^{-1}$)
An organic compound '$A$' contains nitrogen and chlorine. It dissolves readily in water to give a solution that turns litmus red. Titration of compound '$A$' with standard base indicates that the molecular weight of '$A$' is $131\pm 2$. When a sample of '$A$' is treated with aq. $\mathrm{NaOH}$, a liquid separates which contains $N$ but not $\mathrm{Cl}$. Treatment of the obtained liquid with nitrous acid followed by phenol gives orange precipitate. The compound '$A$' is
Which one of the following is a water soluble vitamin, that is not excreted easily?
Arrange the following in increasing order of reactivity towards nitration A. $p$-xylene B. bromobenzene C. mesitylene D. nitrobenzene E. benzene Choose the correct answer from the options given below
The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is 
In the given reaction  the number of ${\mathrm{sp}}^{2}$ hybridised carbon (s) in compound $'X'$ is _______.
Given below are two statements. Statement I: The presence of weaker $\pi$-bonds make alkenes less stable than alkanes Statement II: The strength of the double bond is greater than that of carbon-carbon single bond. In the light of the above statements, choose the correct answer from the options : given below.
${({C}_{7}{H}_{5}{O}_{2})}_{2}\overset{\mathrm{hv}}{\longrightarrow }[X]\rightarrow 2{\overset{˙}{C}}_{6}{H}_{5}+2{\mathrm{CO}}_{2}$ Consider the above reaction and identify the intermediated '$X$'
The intermediate $X$, in the reaction 