Hydrocarbons

20 NEET Chemistry previous year questions (PYQs) from 8 papers, 2021 to 2026, with answers and worked solutions.

About this chapter

Difficulty: 5 easy · 12 moderate · 3 hard.
Most-asked subtopics: Preparation of alkanes - decarboxylation (1), Test for unsaturation (Baeyer's reagent) (1), IUPAC Nomenclature of Alkanes (1).
Updated 17 July 2026.

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NEET · 2022 · NEET (UG) 2022 — 17 Jul 2022 · Q53ModerateHas image
#1Aromaticity
NEET · 2022 · NEET (UG) 2022 — 17 Jul 2022 · Q98Moderate
#2Ozonolysis of Alkenes
NEET · 2021 · NEET (UG) 2021 — 12 Sep 2021 · Q51Easy
#3Conformations of Ethane
NEET · 2021 · NEET (UG) 2021 — 12 Sep 2021 · Q53Moderate
#4Addition Reactions of Alkenes (Peroxide Effect)
NEET · 2021 · NEET (UG) 2021 — 12 Sep 2021 · Q95Easy
#5Preparation of Alkanes (Decarboxylation)
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NEET · 2024 · Re-NEET (UG) 2024 — 23 Jun 2024 · Q54Easy
#6Test for unsaturation (Baeyer's reagent)
NEET · 2024 · Re-NEET (UG) 2024 — 23 Jun 2024 · Q95Moderate
#7Oxidation of alkanes (tertiary H)
NEET · 2024 · NEET (UG) 2024 — 05 May 2024 · Q65Easy
#8Boiling points of alkanes and branching
NEET · 2024 · NEET (UG) 2024 — 05 May 2024 · Q98ModerateHas image
#9Oxidative cleavage of alkenes
NEET · 2023 · NEET (UG) 2023 — 07 May 2023 · Q61Moderate
#10Preparation of alkanes - decarboxylation
NEET · 2023 · NEET (UG) 2023 — 07 May 2023 · Q87HardHas image
#11Wurtz-Fittig reaction
NEET · 2023 · NEET (UG) 2023 — 07 May 2023 · Q92HardHas image
#12Aromaticity - Huckel's rule
NEET · 2026 · Re-NEET (UG) 2026 — 21 Jun 2026 · Q48ModerateHas image
#13Carbocation stability and hyperconjugation
NEET · 2026 · Re-NEET (UG) 2026 — 21 Jun 2026 · Q77HardHas image
#14Stereochemistry from alkyne reduction and HBr addition
NEET · 2026 · Re-NEET (UG) 2026 — 21 Jun 2026 · Q83Easy
#15Conjugated double bonds
NEET · 2026 · NEET (UG) 2026 — 03 May 2026 · Q55ModerateHas image
#16IUPAC Nomenclature of Alkanes
NEET · 2026 · NEET (UG) 2026 — 03 May 2026 · Q90ModerateHas image
#17Reactions of Benzene - Addition and Substitution
NEET · 2025 · NEET (UG) 2025 — 04 May 2025 · Q58Moderate
#18Geometrical (cis-trans) Isomerism
NEET · 2025 · NEET (UG) 2025 — 04 May 2025 · Q60ModerateHas image
#19Preparation of Benzene
NEET · 2025 · NEET (UG) 2025 — 04 May 2025 · Q77ModerateHas image
#20Test for Unsaturation with Bromine

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