Hydrocarbons
JEE Main / Chemistry / Organic Chemistry / 174 questions
ChemistryOrganic Chemistry174 PYQs
Practice 174 JEE Main Chemistry questions from Hydrocarbons. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
174
PYQs on Page
Chemistry / Organic Chemistry
2002-2026
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90
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2022-2026
149
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2017-2026
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174PYQs
MCQ85.6%
INTEGER14.4%
Difficulty Mix
#1 Medium128
#2 Easy42
#3 Hard4
90 in last 5 years149 in last 10 years
Hydrocarbons Questions
Showing 50 of 174 questions on this page.
1Hydrocarbons
Compound A formed in the following reaction reacts with B gives the product C. Find out A and B.
MCQ+4 / -12024
2Hydrocarbons
Products A and B formed in the following set of reactions are
MCQ+4 / -12024
3Hydrocarbons
Consider the given reaction. The total number of oxygen atom/s present per molecule of the product \((\mathrm{P})\) is _________.
INTEGER+4 / -12024
4Hydrocarbons
The final product A formed in the following multistep reaction sequence is
MCQ+4 / -12024
5Hydrocarbons
Identify product A and product B :
MCQ+4 / -12024
6Hydrocarbons
The final product A, formed in the following reaction sequence is:
MCQ+4 / -12024
7Hydrocarbons
Acid D formed in above reaction is :
MCQ+4 / -12024
8Hydrocarbons
In the given reactions identify $A$ and $B$
MCQ+4 / -12024
9Hydrocarbons
Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of \(\mathrm{O}_{3}\) per mole of \((\mathrm{X})\) and gives one mole each of ethanal and propanone is _________ \(\mathrm{g}~ \mathrm{mol}^{-1}\) (Molar mass of $$\mat...
INTEGER+4 / -12023
10Hydrocarbons
Number of bromo derivatives obtained on treating ethane with excess of \(\mathrm{Br}_{2}\) in diffused sunlight is ___________
INTEGER+4 / -12023
11Hydrocarbons
In the following reaction, 'B' is
MCQ+4 / -12023
12Hydrocarbons
Find out the major product from the following reaction.
MCQ+4 / -12023
13Hydrocarbons
Choose the correct set of reagents for the following conversion.
trans \(\left(\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\right) \rightarrow \operatorname{cis}\left(\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\right)\)
trans \(\left(\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\right) \rightarrow \operatorname{cis}\left(\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\right)\)
MCQ+4 / -12023
14Hydrocarbons
A hydrocarbon ' $\mathrm{X}$ ' with formula $\mathrm{C}_{6} \mathrm{H}_{8}$ uses two moles of $\mathrm{H}_{2}$ on catalytic hydrogenation of its one mole. On ozonolysis, ' $\mathrm{X}$ ' yields two moles of methane dicarbaldehyde. The hydro...
MCQ+4 / -12023
15Hydrocarbons
The major products 'A' and 'B', respectively, are
MCQ+4 / -12023
16Hydrocarbons
17 mg of a hydrocarbon (M.F. \(\mathrm{C_{10}H_{16}}\)) takes up 8.40 mL of the H\(_2\) gas measured at 0\(^\circ\)C and 760 mm of Hg. Ozonolysis of the same hydrocarbon yields
The number of double bond/s present in the hydrocarbon is ____...
The number of double bond/s present in the hydrocarbon is ____...
INTEGER+4 / -12023
17Hydrocarbons
The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)
MCQ+4 / -12023
18Hydrocarbons
The correct sequence of reagents for the preparation of Q and R is :
MCQ+4 / -12023
19Hydrocarbons
In the following given reaction, 'A' is
MCQ+4 / -12023
20Hydrocarbons
Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5-tetramethylhexane by chlorination is _____________
INTEGER+4 / -12023
21Hydrocarbons
Find out the major products from the following reactions.
MCQ+4 / -12023
22Hydrocarbons
But-2-yne is reacted separately with one mole of Hydrogen as shown below :
A. A is more soluble than B.
B. The boiling point & melting point of A are higher and lower than B respectively.
C. A is more polar than B because dipole moment of ...
A. A is more soluble than B.
B. The boiling point & melting point of A are higher and lower than B respectively.
C. A is more polar than B because dipole moment of ...
MCQ+4 / -12023
23Hydrocarbons
'\(\mathrm{X}\)' is :
MCQ+4 / -12023
24Hydrocarbons
The product formed in the following multistep reaction is :
MCQ+4 / -12023
25Hydrocarbons
For the given reaction
The total number of possible products formed by tertiary carbocation of A is ____________.
The total number of possible products formed by tertiary carbocation of A is ____________.
INTEGER+4 / -12023
26Hydrocarbons
In the above reaction, left hand side and right hand side rings are named as '\(\mathrm{A}\)' and 'B' respectively. They undergo ring expansion. The correct statement for this process is:
MCQ+4 / -12023
27Hydrocarbons
The number of possible isomeric products formed when 3-chloro-1-butene reacts with \(\mathrm{HCl}\) through carbocation formation is __________.
INTEGER+4 / -12023
28Hydrocarbons
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
In the light of the above statements, choose the correct answer from the options given below:
In the light of the above statements, choose the correct answer from the options given below:
MCQ+4 / -12023
29Hydrocarbons
The major product formed in the following reaction is
Choose the correct answer from the options given below :
Choose the correct answer from the options given below :
MCQ+4 / -12023
30Hydrocarbons
Two isomers 'A' and 'B' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer 'A' on reaction with KMnO4/H+ results in effervescence of a gas and gives ketone. The compound 'A' is
MCQ+4 / -12022
31Hydrocarbons
Product 'A' of following sequence of reactions is
MCQ+4 / -12022
32Hydrocarbons
What will be the major product of following sequence of reactions?
MCQ+4 / -12022
33Hydrocarbons
The major product in the following reaction
MCQ+4 / -12022
34Hydrocarbons
\(\stackrel{\bullet}{\mathrm{Cl}}+\mathrm{CH}_{4} \rightarrow \mathrm{A}+\mathrm{B}\)
A and B in the above atmospheric reaction step are :
A and B in the above atmospheric reaction step are :
MCQ+4 / -12022
35Hydrocarbons
The product formed in the following reaction.
MCQ+4 / -12022
36Hydrocarbons
A compound ‘\(\mathrm{A}\)’ on reaction with ‘\(\mathrm{X}\)’ and ‘\(\mathrm{Y}\)’ produces the same major product but different by product '\(a\)' and '\(b^{\prime}\). Oxidation of '\(a\)' gives a substance produced by ants.
'X' and 'Y' r...
'X' and 'Y' r...
MCQ+4 / -12022
37Hydrocarbons
Major product of the following reaction is
MCQ+4 / -12022
38Hydrocarbons
The major product 'A' of the following given reaction has _____________ sp2 hybridized carbon atoms.
INTEGER+4 / -12022
39Hydrocarbons
Which of the following reagents / reactions will convert 'A' to 'B' ?
MCQ+4 / -12022
40Hydrocarbons
Given below are two statements :
Statement I : The presence of weaker \(\pi\)-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...
Statement I : The presence of weaker \(\pi\)-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...
MCQ+4 / -12022
41Hydrocarbons
For the following sequence of reactions, the correct
products are :
products are :
MCQ+4 / -12021
42Hydrocarbons
Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction :CH4 + I2 \(\mathrel{\mathop{\kern0pt\rightleftharpoons}
\limits_{{\mathop{\rm Re}\nolimits} versible}^{hv}}\) CH3 ...
MCQ+4 / -12021
43Hydrocarbons
The correct sequence of correct reagents for the following transformation is :
MCQ+4 / -12021
44Hydrocarbons
In \(\mathop C\limits^1 {H_2} = \mathop C\limits^2 = \mathop C\limits^3 H - \mathop C\limits^4 {H_3}\) molecule, the hybridization of carbon 1, 2, 3 and 4 respectively, are :
MCQ+4 / -12021
45Hydrocarbons
The number of sigma bonds in is _______________.
INTEGER+4 / -12021
46Hydrocarbons
An organic compound 'A' C4H8 on treatment with KMnO4/H+ yields compound 'B' C3H6O.Compound 'A' also yields compound 'B' an ozonolysis. Compound 'A' is :
MCQ+4 / -12021
47Hydrocarbons
Consider the above chemical reaction. The total number of stereoisomers possible for Product 'P' is _____________.
INTEGER+4 / -12021
48Hydrocarbons
Identify A in the given chemical reaction.
MCQ+4 / -12021
49Hydrocarbons
Consider the following chemical reaction.
The number of sp2 hybridized carbon atom(s) present in the product is ________.
The number of sp2 hybridized carbon atom(s) present in the product is ________.
INTEGER+4 / -12021
50Hydrocarbons
The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is :
MCQ+4 / -12021
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