JEE-MAIN SERIES
Chemistry

Alkenes

14 previous year questions.

Volume: 14 Ques
Yield: Medium

High-Yield Trend

2
2026
1
2025
5
2023
4
2022
1
2021
1
2020

Chapter Questions
14 MCQs

01
PYQ 2020
medium
chemistry ID: jee-main
The major product formed in the following reaction is :
1
2
3
4
02
PYQ 2021
medium
chemistry ID: jee-main
What is the major product formed by on reaction with
1
2
3
4
03
PYQ 2022
medium
chemistry ID: jee-main
Given below are two statements.
Statement I: The presence of weaker π-bonds make alkenes less stable than alkanes.
Statement II: The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.
1
Both Statement I and Statement II are correct.
2
Both Statement I and Statement II are incorrect.
3
Statement I is correct but Statement II is incorrect.
4
Statement I is incorrect but Statement II is correct.
04
PYQ 2022
easy
chemistry ID: jee-main
Number of grams of bromine that will completely react with 5.0 g of pent-1-ene is ______ × 10–2 g. (Atomic mass of Br = 80 g/mol) [Nearest integer]
05
PYQ 2022
medium
chemistry ID: jee-main

The major product in the following reaction is:
 

Fig. Chemical Reaction
1
2
3
4
06
PYQ 2022
easy
chemistry ID: jee-main

The major product (P) of the given reaction is (where, Me is –CH3)

Fig. 
07
PYQ 2023
easy
chemistry ID: jee-main
Given below are two statements, one is labelled as Assertion and the other is labelled as Reason
Assertion A: Carbon forms two important oxides - and is neutral whereas is acidic in nature
Reason R : can combine with water in a limited way to form carbonic acid, while is sparingly soluble in water
In the light of the above statements, choose the most appropriate answer from the options given below
1
A is not correct but is correct
2
Both and are correct but is NOT the correct explanation of
3
Both and are correct and is the correct explanation of
4
A is correct but is not correct
08
PYQ 2023
medium
chemistry ID: jee-main

Choose the correct set of reagents for the following conversion trans

1
, alc
2
, alc Lindlar Catalyst
3
, aq Lindlar Catalyst
4
09
PYQ 2023
easy
chemistry ID: jee-main

The molality of a 10% (v/v) solution of di-bromine solution in (carbon tetrachloride) is . . (Nearest integer)
Given:
Molar mass of
Atomic mass of
Atomic mass of
Density of dibromine =
Density of

10
PYQ 2023
medium
chemistry ID: jee-main
Find out the major product from the following reaction
1

2

3

4

11
PYQ 2023
medium
chemistry ID: jee-main

Consider the above reaction and identify the product B.
Consider the above reaction and identify the product B.

1
Consider the above reaction and identify the product B.
2
Consider the above reaction and identify the product B.
3
Consider the above reaction and identify the product B.
4
Consider the above reaction and identify the product B.
12
PYQ 2025
hard
chemistry ID: jee-main

The reactions which cannot be applied to prepare an alkene by elimination, are

Choose the correct answer from the options given below:

1
B & E Only
2
B, C & D Only
3
A, C & D Only
4
B & D Only
13
PYQ 2026
hard
chemistry ID: jee-main
As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene?
The magnitude of negative charge is more on chlorine atom.
The C--Cl bond has partial double bond character.
C--Cl bond is less polar.
C--Cl bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine.
The C--Cl bond is formed using hybridised orbital of carbon.
Choose the correct answer from the options given below:
1
B, C and D Only
2
A, C and E Only
3
A, D and E Only
4
B, C and E Only
14
PYQ 2026
medium
chemistry ID: jee-main

Arrange the following alkenes in the decreasing order of stability:
 
Choose the correct answer from the options given below: 
 

1
III II I IV
2
I III II IV
3
III I II IV
4

I III IV II

About Alkenes - JEE-MAIN

Alkenes is a vital chapter for JEE-MAIN aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Alkenes PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Alkenes carry the most weight. Then, tackle the questions iteratively to solidify your understanding.