JEE Main Chemistry — Organic Chemistry previous year questions with solutions.
The correct sequence of correct reagents for the following transformation is :- 
Arrange the following conformational isomers of n-butane in order of their increasing potential energy: 
What is $'X'$ in the given reaction? 
The total number of negative charge in the tetrapeptide, Gly-Glu-Asp-Tyr, at $\mathrm{pH}12.5$ will be_______ (Integer answer)
Match List$-I$ with List$-\mathrm{II}:$ <table class="pyq-table"><tbody><tr><td></td><td>List$-I$ (Chemicals)</td><td></td><td>List$-\mathrm{II}$ (Use / Preparation / Constituent)</td></tr><tr><td>(a)</td><td>Alcoholic potassium hydroxide</td><td>(i)</td><td>Electrodes in batteries</td></tr><tr><td>(b)</td><td>$\mathrm{Pd}/{\mathrm{BaSO}}_{4}$</td><td>(ii)</td><td>Obtained by addition reaction</td></tr><tr><td>(c)</td><td>$\mathrm{BHC}$ (Benzene hexachloride)</td><td>(iii)</td><td>Used for $\beta -$elimination reaction</td></tr><tr><td>(d)</td><td>Polyacetylene</td><td>(iv)</td><td>Lindlar's catalyst</td></tr></tbody></table>Choose the most appropriate match
The correct order of reactivity of the given chlorides with acetate in acetic acid is :
The major products formed in the following reaction sequence $A$ and $B$ are: 
In Carius method, halogen containing organic compound is heated with fuming nitric acid in the presence of:
Given below are two statements : Statement I : ${C}_{2}{H}_{5}\mathrm{OH}$ and $\mathrm{AgCN}$ both can generate nucleophile. Statement II : $\mathrm{KCN}$ and $\mathrm{AgCN}$ both will generate nitrile nucleophile with all reaction conditions. Choose the most appropriate option :
In the following molecules,  Hybridisation of carbon $a,b$ and $c$ respectively are :
 Consider the above reaction and identify the Product $P$ :
Which among the following pairs of Vitamins is stored in our body relatively for longer duration?
Which one of the following phenols does not give colour when condensed with phthalic anhydride in presence of conc. ${H}_{2}{\mathrm{SO}}_{4}$ ?
Which one of the following compounds is aromatic in nature?
 The product "A" in the above reaction is:
The potassium ferrocyanide solution gives a Prussian blue colour, when added to :
The correct sequential addition of reagents in the preparation of $3-$nitrobenzoic acid from benzene is:
Compound(s) which will liberate carbon dioxide with sodium bicarbonate solution is/are : 
Which one of the following is correct structure for cytosine ?
The water soluble protein is:
Given below are two statements : Statement $I$ : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion. Statement $\mathrm{II}$ : The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product. In the light of the above statements, choose the most appropriate answer from the options given below :
For the given reaction:  What is $A$?
A reaction of 0.1 mole of Benzylamine with bromomethane gave $23g$ of Benzyl trimethyl ammonium bromide. The number of moles of bromomethane consumed in this reaction are $n\times {10}^{-1},$ when $n=$_____ (Round off to the Nearest Integer). $(\text{Given : Atomic masses}:C:12.0u,H:1.0u,N:14.0u,\mathrm{Br}:80.0u)$
Benzene on nitration gives nitrobenzene in presence of ${\mathrm{HNO}}_{3}$ and ${H}_{2}{\mathrm{SO}}_{4}$ mixture, where: