JEE Main 2018 — Organic Chemistry
Chemistry Organic Chemistry questions from JEE Main 2018.
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43 Organic Chemistry Questions from 2018
The major product of the following reaction is: 
The major product of the following reaction is 
The increasing order of basicity of the following compounds is : 
Among the following, the incorrect statement is
Which of the following will most readily give the dehydrohalogenation product?
The increasing order of diazotisation of the following compounds is: (a)  (b) (c) (d)
The correct match between items of List-I and List-II is <table class="pyq-table"><tbody><tr><td></td><td>List - I</td><td></td><td>List - II</td></tr><tr><td>(A)</td><td>Coloured impurity</td><td>(P)</td><td>Steam distillation</td></tr><tr><td>(B)</td><td>Mixture of o – nitrophenol and p –nitrophenol</td><td>(Q)</td><td>Fractional distillation</td></tr><tr><td>(C)</td><td>Crude Naphtha</td><td>(R)</td><td>Charcoal treatment</td></tr><tr><td>(D)</td><td>Mixture of glycerol and sugars</td><td>(S)</td><td>Distillation under reduced pressure</td></tr></tbody></table>
Which of the following will most readily give the dehydrohalogenation product?
The major product of the following reaction is: 
The major product of the following reaction is: 
The reagent(s) required for the following conversion are: 
Glucose on prolonged heating with $\mathrm{HI}$ gives
The IUPAC name of the following compound is 
The increasing order of the acidity of the following carboxylic acids is: 
Which of the following compounds will most readily be dehydrated to give alkene under acidic condition?
Phenol reacts with methyl chloroformate in the presence of $\mathrm{NaOH}$ to form product $A.A$reacts with ${\mathrm{Br}}_{2}$ to form product $B.A\mathrm{and}B$ are respectively
The predominant form of histamine present in human blood is $({\mathrm{pK}}_{a},\mathrm{Histidine}=60)$
The increasing order of nitration in the acidic medium of the following compounds is: 
The main reduction product of the following compound with $\mathrm{NaBH}_4$ in methanol is : 
The correct match between items of List-I and List-II is : 
The IUPAC name of the following compound is : 
The major product formed in the following reaction is: 
The main reduction product of the following compound with ${\mathrm{NaBH}}_{4}$ in methanol is: 
Two compounds I and II are eluted by column chromato-graphy(adsorption of I $>$ II). Which one of the following is a correct statement?
The major product formed in the following reaction is: 
The reagent(s) required for the following conversion are: 
Which of the following will not exist in Zwitterionic form at $\mathrm{pH}=7$?
The dipeptide, Gln-Gly, on treatment with $\mathrm{CH}_3 \mathrm{COCl}$ followed by aqueous work up gives.
The major product B formed in the following reaction sequence is: 
Products A and B formed in the following reactions are respectively: 
Which of the following is the correct structure of adenosine ?
On the treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is: 
The major product of the following reaction is: 
Which of the following compounds will be suitable for Kjeldahl's method for nitrogen estimation?
The major product of the following reaction is: 
The major product formed in the following reaction is: 
When 2-butyne is treated with $\mathrm{H}_2$ /Lindlar's catalyst, compound $\mathrm{X}$ is produced as the major product and when treated with $\mathrm{Na}$ /liq. $\mathrm{NH}_3$ it produces $\mathrm{Y}$ as the major product. Which of the following statements is correct?
Phenol on treatment with $C{O}_{2}$ in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with ${(C{H}_{3}CO)}_{2}$O in the presence of catalytic amount of ${H}_{2}S{O}_{4}$ produces:
The total number of optically active compounds formed in the following reaction is: 
The trans-alkenes are formed by the reduction of alkynes with
The increasing order of nitration of the following compounds is : 
Which of the following will not exist in zwitter ionic form at $\mathrm{pH}=7$ ?
Which of the following is the correct structure of adenosine?