Basics of Organic Chemistry PYQs - Last 10 Years
JEE Main / Chemistry / Organic Chemistry / 250 recent questions
ChemistryOrganic Chemistry2017-2026
Practice 250 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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2017-2026
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Last 10 Years Basics of Organic Chemistry Questions
Showing 50 of 250 filtered questions.
1Basics Of Organic Chemistry
Nitrogen can be estimated by Kjeldahl's method for which of the following compound?
MCQ+4 / -12021
2Basics Of Organic Chemistry
In chromotography technique, the purification of compound is independent of :
MCQ+4 / -12021
3Basics Of Organic Chemistry
Among the following, the aromatic compounds are :Choose the correct answer from the following options :
MCQ+4 / -12021
4Basics Of Organic Chemistry
The increasing order of basicity for the
following intermediates is (from weak to
strong)
following intermediates is (from weak to
strong)
MCQ+4 / -12020
5Basics Of Organic Chemistry
Which of the following has the shortest C-Cl
bond?
bond?
MCQ+4 / -12020
6Basics Of Organic Chemistry
A flask contains a mixture of isohexane and 3-methylpentane. One of the liquids boils at 63oC while the
other boils at 60oC What is the best way to separate the two liquids and which one will be distilled out first ?
other boils at 60oC What is the best way to separate the two liquids and which one will be distilled out first ?
MCQ+4 / -12020
7Basics Of Organic Chemistry
Kjeldahl's method cannot be used to estimate
nitrogen for which of the following
compounds?
nitrogen for which of the following
compounds?
MCQ+4 / -12020
8Basics Of Organic Chemistry
The increasing order to Pkb for the following compounds will be :
MCQ+4 / -12020
9Basics Of Organic Chemistry
A chromatography column, packed with silica gel as stationary phase, was used to separate a
mixture of compounds consisting of (A) benzanilide (B) aniline and (C) acetophenone. When the
column is eluted with a mixture of solvents, hexane : ...
mixture of compounds consisting of (A) benzanilide (B) aniline and (C) acetophenone. When the
column is eluted with a mixture of solvents, hexane : ...
MCQ+4 / -12020
10Basics Of Organic Chemistry
Which of the following compounds shows
geometrical isomerism?
geometrical isomerism?
MCQ+4 / -12020
11Basics Of Organic Chemistry
The IUPAC name of the following compound is :
MCQ+4 / -12020
12Basics Of Organic Chemistry
The increasing order of boiling points of the following compounds is :
MCQ+4 / -12020
13Basics Of Organic Chemistry
Among the following compounds, geometrical isomerism is exhibited by :
MCQM+4 / -12020
14Basics Of Organic Chemistry
The IUPAC name of the following compound is :
MCQ+4 / -12020
15Basics Of Organic Chemistry
Glycerol is separated in soap industries by :
MCQ+4 / -12020
16Basics Of Organic Chemistry
Which one of the following compounds possesses the most acidic hydrogen?
MCQ+4 / -12020
17Basics Of Organic Chemistry
The IUPAC name for the following compound
is
is
MCQ+4 / -12020
18Basics Of Organic Chemistry
The number of chiral carbons present in the
molecule given below is _____ .
molecule given below is _____ .
INTEGER+4 / -02020
19Basics Of Organic Chemistry
The correct decreasing order for acid strength is :
MCQ+4 / -12019
20Basics Of Organic Chemistry
Which amongst the following is the strongest acid ?
MCQ+4 / -12019
21Basics Of Organic Chemistry
The increasing basicity order of the following compounds is :
MCQ+4 / -12019
22Basics Of Organic Chemistry
Which of the following compounds is not aromatic ?
MCQ+4 / -12019
23Basics Of Organic Chemistry
The increasing order of reactivity of the
following compounds towards aromatic
electrophilic substitution reaction is :
following compounds towards aromatic
electrophilic substitution reaction is :
MCQ+4 / -12019
24Basics Of Organic Chemistry
The correct IUPAC name of the following
compound is :
compound is :
MCQ+4 / -12019
25Basics Of Organic Chemistry
The IUPAC name of the following compound is :
MCQ+4 / -12019
26Basics Of Organic Chemistry
In the following compounds, the decreasing order of basic strength will be :
MCQ+4 / -12019
27Basics Of Organic Chemistry
Which of the following compounds will show
the maximum 'enol' content?
the maximum 'enol' content?
MCQ+4 / -12019
28Basics Of Organic Chemistry
Among the following four aromatic compounds, which one will have the lowest melting point ?
MCQ+4 / -12019
29Basics Of Organic Chemistry
The increasing order of the pKb of the following compound is :
MCQ+4 / -12019
30Basics Of Organic Chemistry
The IUPAC name for the following compound is :
MCQ+4 / -12019
31Basics Of Organic Chemistry
The correct match between items I and II is :
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MCQ+4 / -12019
32Basics Of Organic Chemistry
In the following compound,
the favourable site/s for protonation is/are :
the favourable site/s for protonation is/are :
MCQ+4 / -12019
33Basics Of Organic Chemistry
If dichloromethane (DCM) and water (H2O) are used for differential extraction, which one of the following statements is correct ?
MCQ+4 / -12019
34Basics Of Organic Chemistry
What is the IUPAC name of the following compound ?
MCQ+4 / -12019
35Basics Of Organic Chemistry
The principle of column chromatography is :
MCQ+4 / -12019
36Basics Of Organic Chemistry
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is :
MCQ+4 / -12019
37Basics Of Organic Chemistry
Which of these factors does not govern the stability of a conformation in acyclic compounds?
MCQ+4 / -12019
38Basics Of Organic Chemistry
In chromatography, which of the following statements is incorrect for Rf ?
MCQ+4 / -12019
39Basics Of Organic Chemistry
The increasing order of nucleophilicity of the following nucleophiles is :
(a) CH3CO2\(-\) (b) H2O
(c) CH3SO3\(-\) (d) \(\mathop O\limits^ - H\)
(a) CH3CO2\(-\) (b) H2O
(c) CH3SO3\(-\) (d) \(\mathop O\limits^ - H\)
MCQ+4 / -12019
40Basics Of Organic Chemistry
The IUPAC name of the following compound is :
MCQ+4 / -12018
41Basics Of Organic Chemistry
The correct match between items of List-I and List-II is :
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MCQ+4 / -12018
42Basics Of Organic Chemistry
Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ?
MCQ+4 / -12018
43Basics Of Organic Chemistry
On treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is :
MCQ+4 / -12018
44Basics Of Organic Chemistry
In the following structure, the double bonds are marked as I, II, III and IV
Geometrical isomerism is not possible at site (s) :
Geometrical isomerism is not possible at site (s) :
MCQ+4 / -12017
45Basics Of Organic Chemistry
Which of the following compounds will show highest dipole moment ?
MCQ+4 / -12017
46Basics Of Organic Chemistry
Which of the following compounds is most reactive to an aqueous solution of sodium
carbonate ?
carbonate ?
MCQ+4 / -12017
47Basics Of Organic Chemistry
Which of the following statements is not true about partition chromatography?
MCQ+4 / -12017
48Basics Of Organic Chemistry
The IUPAC name of the following compound is :
MCQ+4 / -12017
49Basics Of Organic Chemistry
A mixture containing the following four compounds is extracted with \(1M\) \(HCl.\) The compound that goes to aqueous layer is :
MCQ+4 / -12017
50Basics Of Organic Chemistry
Which of the following molecules is least resonance stabilized?
MCQ+4 / -12017