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Basics of Organic Chemistry

JEE Main / Chemistry / Organic Chemistry / 296 questions

ChemistryOrganic Chemistry296 PYQs

Practice 296 JEE Main Chemistry questions from Basics of Organic Chemistry. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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2002-2026
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Basics of Organic Chemistry Questions

Showing 46 of 296 questions on this page.

1Basics Of Organic Chemistry
The hydrocarbon with seven carbon atoms containing a neopentyl and a vinyl group
is :
MCQ+4 / -12016
2Basics Of Organic Chemistry
The distillation technique most suited for separating glycerol from spent-lye in the soap industry is :
MCQ+4 / -12016
3Basics Of Organic Chemistry
The absolute configuration of

is :
MCQ+4 / -12016
4Basics Of Organic Chemistry
Which of the following compounds will exhibit geometrical isomerism?
MCQ+4 / -12015
5Basics Of Organic Chemistry
In Carius method of estimation of halogens, 250 mg of an organic compound gave 141 mg of AgBr. The
percentage of bromine in the compound is: (at. Mass Ag = 108; Br = 80)
MCQ+4 / -12015
6Basics Of Organic Chemistry
For the estimation of nitrogen, 1.4 g of organic compound was digested by Kjeldahl method and the
evolved ammonia was absorbed in 60 mL of M/10 sulphuric acid. The unreacted acid required 20 ml of M/10
sodium hydroxide for complete neutrali...
MCQ+4 / -12014
7Basics Of Organic Chemistry
The order of stability of the following carbocations :
MCQ+4 / -12013
8Basics Of Organic Chemistry
Identify the compound that exhibits tautomerism.
MCQ+4 / -12011
9Basics Of Organic Chemistry
Out of the following, the alkene that exhibits optical isomerism is
MCQ+4 / -12010
10Basics Of Organic Chemistry
The correct order of increasing basicity of the given conjugate bases (R = CH3) is
MCQ+4 / -12010
11Basics Of Organic Chemistry
Arrange the carbanions, \({(C{H_3})_3}\overline C\), \(\overline C C{l_3}\) , \({(C{H_3})_2}\overline C H\), \({C_6}{H_5}\overline C H{}_2\) in order of their decreasing stability :
MCQ+4 / -12009
12Basics Of Organic Chemistry
The IUPAC name of neopentane is
MCQ+4 / -12009
13Basics Of Organic Chemistry
The number of stereoisomers possible for a compound of the molecular formula
CH3 - CH = CH - CH(OH) - Me is :
MCQ+4 / -12009
14Basics Of Organic Chemistry
The alkene that exhibits geometrical isomerism is :
MCQ+4 / -12009
15Basics Of Organic Chemistry
The electrophile, \({E^ \oplus }\) attacks the benzene ring to generate the intermediate \(\sigma -\)complex. Of the following, which \(\sigma -\)complex is lowest energy?
MCQ+4 / -12008
16Basics Of Organic Chemistry
The absolute configuration of
MCQ+4 / -12008
17Basics Of Organic Chemistry
The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC
system of nomenclature is
MCQ+4 / -12008
18Basics Of Organic Chemistry
Which one of the following conformation of cyclohexane is chiral?
MCQ+4 / -12007
19Basics Of Organic Chemistry
MCQ+4 / -12007
20Basics Of Organic Chemistry
Presence of a nitro group in a benzene ring
MCQ+4 / -12007
21Basics Of Organic Chemistry
Which of the following molecules is expected to rotate the plane of plane - polarized light?
MCQ+4 / -12007
22Basics Of Organic Chemistry
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of
2-fluoroethanol is
MCQ+4 / -12006
23Basics Of Organic Chemistry
The \(IUPAC\) name of the compound shown below is :
MCQ+4 / -12006
24Basics Of Organic Chemistry
The increasing order of stability of the following free radicals is
MCQ+4 / -12006
25Basics Of Organic Chemistry
CH3Br + Nu- \(\to\) CH3 - Nu + Br- The decreasing order of the rate of the above reaction with nucleophiles (Nu–) A to D is
[Nu– = (A) PhO–, (B) AcO–, (C) HO–, (D) CH3O–]
MCQ+4 / -12006
26Basics Of Organic Chemistry
Due to the presence of an unpaired electron, free radicals are:
MCQ+4 / -12005
27Basics Of Organic Chemistry
The decreasing order of nucleophilicity among the nucleophiles
MCQ+4 / -12005
28Basics Of Organic Chemistry
The reaction

is fastest when \(X\) is
MCQ+4 / -12005
29Basics Of Organic Chemistry
The \(IUPAC\) name of the compound is
MCQ+4 / -12004
30Basics Of Organic Chemistry
Rate of the reaction

is fastest when \(Z\) is
MCQ+4 / -12004
31Basics Of Organic Chemistry
Consider the acidity of the carboxylic acids:
(a) PhCOOH
(b) o – NO2C6H4COOH
(c) p – NO2C6H4COOH
(d) m – NO2C6H4COOH
Which of the following order is correct?
MCQ+4 / -12004
32Basics Of Organic Chemistry
Which of the following compound is not chiral?
MCQ+4 / -12004
33Basics Of Organic Chemistry
Which of the following is the strongest base ?
MCQ+4 / -12004
34Basics Of Organic Chemistry
Which one the following does not have sp2 hybridized carbon?
MCQ+4 / -12004
35Basics Of Organic Chemistry
Which of the following will have meso-isomer also?
MCQ+4 / -12004
36Basics Of Organic Chemistry
Amongst the following compounds, the optically active alkane having lowest molecular mass is
MCQ+4 / -12004
37Basics Of Organic Chemistry
Among the following four structures \(i\) to \(iv,\)

it is true that
MCQ+4 / -12003
38Basics Of Organic Chemistry
The general formula CnH2nO2 could be for open chain
MCQ+4 / -12003
39Basics Of Organic Chemistry
The IUPAC name of CH3COCH(CH3)2 is
MCQ+4 / -12003
40Basics Of Organic Chemistry
In the anion HCOO\(-\)
the two carbon-oxygen bonds are found to be of equal length. What is the reason for it?
MCQ+4 / -12003
41Basics Of Organic Chemistry
A similarity between optical and geometrical isomerism is that
MCQ+4 / -12002
42Basics Of Organic Chemistry
Racemic mixture is formed by mixing two
MCQ+4 / -12002
43Basics Of Organic Chemistry
Which of the following does not show geometrical isomerism?
MCQ+4 / -12002
44Basics Of Organic Chemistry
Which of the following compounds has wrong \(IUPAC\) name ?
MCQ+4 / -12002
45Basics Of Organic Chemistry
Following types of compounds (as \(I, II\) )

are studied in terms of isomerism in :
MCQ+4 / -12002
46Basics Of Organic Chemistry
Arrangement of (CH3)3C-, (CH3)2CH-, CH3-CH2- when attached to benzyl or an unsaturated group in increasing order of inductive effect is
MCQ+4 / -12002

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