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Friday, 9 October

JEE Main Chemistry · Class 11

Hydrocarbons: JEE Main previous year questions

Hydrocarbons had 34 questions in the 42 JEE Main shifts Lumi analysed, about 0.7 a shift, asked in 27 of 42 shifts. It ranks 19 of 30 Chemistry chapters by questions; 18% of its questions were hard.

Questions
34
in 27 of 42 shifts
A shift, on average
0.7
of 25 Chemistry questions
Since 2024
+0.2
0.7 a shift in 2017–23, 0.8 in 2024–26
Numerical answer
9
26% of its questions

Year by year

How often it came

Questions in the analysed shifts of each year. Years differ in how many shifts Lumi analysed, so read the bars with the shift count.

Questions each year
05101’173’203’214’221’2310’244’258’26

2017: 1 shifts · 2020: 4 shifts · 2021: 4 shifts · 2022: 4 shifts · 2023: 4 shifts · 2024: 8 shifts · 2025: 8 shifts · 2026: 9 shifts

Difficulty by year
  • 20171
  • 20203
  • 20213
  • 20224
  • 20231
  • 202410
  • 20254
  • 20268
  • Easy
  • Medium
  • Hard

Inside the chapter

Topics and the ideas that repeat

6 topics and 16 distinct ideas; 7 ideas were asked more than once. Most questions are single correct and application.

Topics, by questions

3 questions had no close topic in our taxonomy and are counted for the chapter only.

Ideas asked most
7 repeat

Study it on Lumi

Hydrocarbons: the interactive lesson

Every question

All 34 Hydrocarbons questions

Newest first. Each opens with its options and the official answer.

2026 8 questions

  1. 2 Apr 2026, Shift 1 · Q72Consider the isomers of hydrocarbon with molecular formula C5H10\mathrm{C_5H_{10}}. These isomers do not decolourise KMnO4\mathrm{KMnO_4}…HardNumerical value
  2. 2 Apr 2026, Shift 1 · Q73One mole of an alkane (x) requires 88 mole oxygen for complete combustion. Sum of number of carbon and hydrogen atoms in the alkane (x)…EasyNumerical value
  3. 2 Apr 2026, Shift 2 · Q64The compound (X) on heating in the presence of anhydrous AlCl3_3 and HCl gas gives 2,4-dimethyl pentane (ii) aromatization gives toluene…EasySingle correct
  4. 4 Apr 2026, Shift 2 · Q64Compound (X) is subjected to the sequence of reactions as shown above. Molar mass of the major product (Y) formed is ________…MediumDiagram basedHas a figure
  5. 5 Apr 2026, Shift 2 · Q63IUPAC name of the some alkenes are given below. Find out the correct stability order. A. 2-Methylbut-2-ene B. ciscis-But-2-ene C. 2,…MediumSingle correct
  6. 6 Apr 2026, Shift 1 · Q65Given below are two statements: Statement I: Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of…MediumTwo statements
  7. 6 Apr 2026, Shift 2 · Q72An alkane (Y) requires 8 moles of oxygen for complete combustion and on chlorination with Cl2/hν\mathrm{Cl_2}/h\nu, (Y) gives only one…MediumNumerical value
  8. 8 Apr 2026, Shift 2 · Q65n-Butane on monochlorination under photochemical condition gives an optically active compound "P". "P" on further chlorination gives…MediumSingle correct

2025 4 questions

  1. 2 Apr 2025, Shift 1 · Q65Designate whether each of the following compounds is aromatic or not aromatic.MediumSingle correctHas a figure
  2. 2 Apr 2025, Shift 2 · Q66Given below are two statements : Statement (I) : Neopentane forms only one monosubstituted derivative. Statement (II) : Melting point of…MediumTwo statements
  3. 3 Apr 2025, Shift 1 · Q65Which compound would give 3-methyl-6-oxoheptanal upon ozonolysis?MediumDiagram basedHas a figure
  4. 7 Apr 2025, Shift 1 · Q67Given below are two statements: Statement I: Ozonolysis followed by treatment with Zn, H2O\mathrm{H_2O} of cis-2-butene gives ethanal.…MediumTwo statements

2024 10 questions

  1. 6 Apr 2024, Shift 2 · Q74Four aromatic compounds are shown: (I) toluene (benzene ring with CH3\mathrm{CH_3}), (II) benzene, (III) anisole (benzene ring with…EasyDiagram basedHas a figure
  2. 6 Apr 2024, Shift 2 · Q75The incorrect statement regarding the geometrical isomers of 2-butene is :EasySingle correct
  3. 9 Apr 2024, Shift 2 · Q74The incorrect statement regarding ethyne isEasySingle correct
  4. 9 Apr 2024, Shift 2 · Q90Number of compounds from the following which cannot\textbf{cannot} undergo Friedel-Crafts reactions is:________ toluene, nitrobenzene, xylene,…MediumNumerical value
  5. 29 Jan 2024, Shift 1 · Q74Identify product A and product B :MediumDiagram basedHas a figure
  6. 29 Jan 2024, Shift 1 · Q89[figure: trans-2-butene drawn as CH3_3 and H on the left carbon, H and CH3_3 on the right carbon (CH3_3 top-left, H bottom-left, H…EasyNumerical valueHas a figure
  7. 31 Jan 2024, Shift 1 · Q87Number of alkanes obtained on electrolysis of a mixture of CH3COONa\mathrm{CH_3COONa} and C2H5COONa\mathrm{C_2H_5COONa} is _________.MediumNumerical value
  8. 31 Jan 2024, Shift 2 · Q73The correct order of reactivity in electrophilic substitution reaction of the following compounds is :EasyDiagram basedHas a figure
  9. 31 Jan 2024, Shift 2 · Q75Major product of the following reaction is -HardDiagram basedHas a figure
  10. 31 Jan 2024, Shift 2 · Q87Number of isomeric products formed by monochlorination of 2-methylbutane in presence of sunlight is __________.MediumNumerical value

2023 1 questions

  1. 6 Apr 2023, Shift 1 · Q89Number of bromo derivatives obtained on treating ethane with excess of Br2\mathrm{Br_2} in diffused sunlight is ________HardNumerical value

2022 4 questions

  1. 25 Jul 2022, Shift 1 · Q73A compound 'A' on reaction with 'X' and 'Y' produces the same major product but different by product 'a' and 'b'. Oxidation of 'a' gives a…MediumSingle correctHas a figure
  2. 28 Jul 2022, Shift 1 · Q73Choose the correct option for the following reactions. (CH3)3C−CH=CH2\mathrm{(CH_3)_3C-CH=CH_2} (3,3-dimethylbut-1-ene, drawn as…MediumSingle correctHas a figure
  3. 24 Jun 2022, Shift 1 · Q90The major product 'A' of the following given reaction has ______ sp2sp^2 hybridized carbon atoms. 2,7-Dimethyl-2,6-octadiene…HardNumerical value
  4. 29 Jun 2022, Shift 1 · Q73Two isomers 'A' and 'B' with molecular formula C4H8\mathrm{C_4H_8} give different products on oxidation with KMnO4\mathrm{KMnO_4} in acidic…MediumSingle correct

2021 3 questions

  1. 25 Jul 2021, Shift 1 · Q42An Organic compound 'A' C4H8\mathrm{C_4H_8} on treatment with KMnO4/H+\mathrm{KMnO_4/H^+} yields compound 'B' C3H6O\mathrm{C_3H_6O}. Compound 'A'…MediumSingle correct
  2. 16 Mar 2021, Shift 2 · Q43An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror…MediumSingle correctHas a figure
  3. 16 Mar 2021, Shift 2 · Q44[figure: cyclohexene reacts with reagent A to give 1,4-dichlorocyclohex-2-ene (a cyclohexene ring with Cl on the two ring carbons para to…MediumDiagram basedHas a figure

2020 3 questions

  1. 8 Jan 2020, Shift 1 · Q43The major products A and B in the following reactions are : (CH3)2CH−CH(CH3)−CN(\mathrm{CH_3})_2\mathrm{CH{-}CH(CH_3){-}CN}…HardDiagram basedHas a figure
  2. 2 Sep 2020, Shift 1 · Q41The major product in the following reaction is : 1-methyl-1-vinylcyclopentane (H3C\mathrm{H_3C} and CH=CH2\mathrm{CH=CH_2} on the same ring…HardDiagram basedHas a figure
  3. 6 Sep 2020, Shift 2 · Q30The increasing order of the boiling points of the major products A, B and C of the following reactions will be : (a) [figure: but-1-ene,…MediumSingle correctHas a figure

2017 1 questions

  1. 2 Apr 2017 (offline) · Q583-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the…MediumSingle correct

Pattern: Asked most years.