JEE Main Chemistry — Organic Chemistry previous year questions with solutions.
How many compounds among the following compounds show inductive, mesomeric as well as hyperconjugation effects? 
The major product of the following reaction is \(P\). \(\mathrm{CH}_3 \mathrm{C}=\mathrm{C}-\mathrm{CH}_3 \xrightarrow[\substack{\text { (ii) dil. } \mathrm{KMnO}_4 \\ 273 \mathrm{~K}}]{\text { (i) } \mathrm{Na} / \text { ing } \mathrm{NH}_3} '^{\prime}\) Number of oxygen atoms present in product ' \(\mathrm{P}\) ' is _______ (nearest integer)
The order of relative stability of the contributing structure is:  Choose the correct answer from the options given below:
Total number of essential amino acid among the given list of amino acids is _______ Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline
The correct statement among the following, for a "chromatography" purification method is :
Find out the major product formed from the following reaction. \(\left[\mathrm{Me}:-\mathrm{CH}_3\right]\) 
 Product \(\mathrm{P}\) is
Which of the following compounds will show optical isomerism?
Functional group present in sulphonic acids is :
Number of compounds among the following which contain sulphur as heteroatom is____. Furan,Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine
Given below are two statements: Statement I : Nitration of benzene involves the following step -  Statement II : Use of Lewis base promotes the electrophilic substitution of benzene. In the light of the above statements, choose the most appropriate answer from the options given below :
Which among the following is incorrect statement?
Identify the product (A) in the following reaction. 
Chromatographic technique/s based on the principle of differential adsorption is/are A. Column chromatography B. Thin layer chromatography C. Paper chromatography Choose the most appropriate answer from the options given below:
Total number of aromatic compounds among the following compounds is ______. 
Following Kjeldahl's method, $1g$ of organic compound released ammonia, that neutralised $10\mathrm{mL}$ of $2{\mathrm{MH}}_{2}{\mathrm{SO}}_{4}.$ The percentage of nitrogen in the compound is _______ $%.$
Identify structure of $2,3$-dibromo-$1$-phenylpentane.
Example of vinylic halide is
Identify the major product in the following reaction. 
 This reduction reaction is known as:
$2-\mathrm{chlorobutane}+{\mathrm{Cl}}_{2}\rightarrow {C}_{4}{H}_{8}{\mathrm{Cl}}_{2}$ (isomers) Total number of optically active isomers shown by ${C}_{4}{H}_{8}{\mathrm{Cl}}_{2}$, obtained in the above reaction is ________.
Consider the given reaction, identify the major product \(P\). \(\mathrm{CH}_3-\mathrm{COOH} \xrightarrow[\text { (iv) } \mathrm{H}_2 \mathrm{O} / \overline{\mathrm{O}} \mathrm{H}, \Delta]{\text { (i) } \mathrm{LiAlH}_4 \text { (ii) } \mathrm{PCC} \text { (iii) } \mathrm{HCN} / \overline{\mathrm{O}} \mathrm{H}}\)"P"
Compound $A$ formed in the following reaction reacts with $B$ gives the product $C$. Find out $A$ and $B.$ 
 Identify (B) and (C) and how are (A) and (C) related ?