Basics of Organic Chemistry PYQs - Last 5 Years
JEE Main / Chemistry / Organic Chemistry / 171 recent questions
ChemistryOrganic Chemistry2022-2026
Practice 171 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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Last 5 Years Basics of Organic Chemistry Questions
Showing 21 of 171 filtered questions.
1Basics Of Organic Chemistry
Total number of possible stereoisomers of dimethyl cyclopentane is ____________.
INTEGER+4 / -12022
2Basics Of Organic Chemistry
Which of the following is most stable?
MCQ+4 / -12022
3Basics Of Organic Chemistry
Optical activity of an enantiomeric mixture is \(+12.6^{\circ}\) and the specific rotation of \((+)\) isomer is \(+30^{\circ}\). The optical purity is __________\(\%\).
INTEGER+4 / -12022
4Basics Of Organic Chemistry
Given below are two statements: one is labelled as Assertion A and, the other is labelled as Reason R.
Assertion A: [6] Annulene, [8] Annulene and cis-[10] Annulene, are respectively aromatic, not-aromatic and aromatic.
Reason R: Planarity...
Assertion A: [6] Annulene, [8] Annulene and cis-[10] Annulene, are respectively aromatic, not-aromatic and aromatic.
Reason R: Planarity...
MCQ+4 / -12022
5Basics Of Organic Chemistry
Match List - I with List - II.
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MCQ+4 / -12022
6Basics Of Organic Chemistry
The correct order of nucleophilicity is
MCQ+4 / -12022
7Basics Of Organic Chemistry
Which of the following compounds is not aromatic?
MCQ+4 / -12022
8Basics Of Organic Chemistry
Which technique among the following, is most appropriate in separation of a mixture of \(100 \,\mathrm{mg}\) of \(p\)-nitrophenol and picric acid ?
MCQ+4 / -12022
9Basics Of Organic Chemistry
Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is ___________.
INTEGER+4 / -12022
10Basics Of Organic Chemistry
Which of the following is not an example of benzenoid compound?
MCQM+4 / -12022
11Basics Of Organic Chemistry
The correct decreasing order of priority of functional groups in naming an organic Question: compound as per IUPAC system of nomenclature is
MCQ+4 / -12022
12Basics Of Organic Chemistry
The IUPAC name of ethylidene chloride is :
MCQ+4 / -12022
13Basics Of Organic Chemistry
In the following structures, which on is having staggered conformation with maximum dihedral angle?
MCQ+4 / -12022
14Basics Of Organic Chemistry
Phenol on reaction with dilute nitric acid, gives two products. Which method will be most efficient for large scale separation?
MCQ+4 / -12022
15Basics Of Organic Chemistry
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.
Reason R ...
Assertion A : A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.
Reason R ...
MCQ+4 / -12022
16Basics Of Organic Chemistry
The total number of monobromo derivatives formed by the alkanes with molecular formula C5H12 is (excluding stereo isomers) __________.
INTEGER+4 / -12022
17Basics Of Organic Chemistry
The separation of two coloured substances was done by paper chromatography. The distances travelled by solvent front, substance A and substance B from the base line are 3.25 cm, 2.08 cm and 1.05 cm, respectively. The ratio of Rf values of A...
INTEGER+4 / -12022
18Basics Of Organic Chemistry
Arrange the following in decreasing acidic strength.
MCQ+4 / -12022
19Basics Of Organic Chemistry
Number of electrophilic centres in the given compound is _______________.
INTEGER+4 / -12022
20Basics Of Organic Chemistry
Which of the following is an example of conjugated diketone?
MCQ+4 / -12022
21Basics Of Organic Chemistry
Arrange the following carbocations in decreasing order of stability.
MCQ+4 / -12022