Hydrocarbons for JEE

• Markovnikov: H adds to the carbon with more H
• Peroxide effect gives anti-Markovnikov addition with HBr only
• Terminal alkynes are acidic
• Benzene undergoes substitution, not addition

• Ozonolysis splits C=C into carbonyls
• Huckel rule: aromatic if (4n + 2) π electrons
• Directive effects: −OH, −NH₂ are o/p directors; −NO₂ is meta
• Wurtz: 2RX + 2Na → R–R

Printable Hydrocarbons formula sheet: formulas, key ideas and traps on one page. Save it as a PDF for offline revision.

• Applying the peroxide effect to HCl or HI
• Wrong ozonolysis products
• Misjudging ring activation

Appears frequently. Reaction-based questions. Make a one-page reaction chart.

Prerequisites: General Organic Chemistry (GOC).

Chapter names follow the current rationalised NCERT textbooks. Read these sections before solving PYQs.

Question. Compound X is an acyclic hydrocarbon with molecular formula C₅H₈. X decolorizes bromine water and also gives a white precipitate with ammoniacal silver nitrate solution. When X is treated with excess HBr, compound Y is formed. The total number of hydrogen atoms in Y is:

This example was solved twice independently and both solutions agree.

Full-chapter free lectures picked from YouTube search results by views, from established JEE channels (mostly in Hinglish). Use the subtopic list to jump straight to the part you need (timestamps come from each video's own chapter list). Watch one, then solve PYQs the same day.

• HYDROCARBON in One Shot: All Concepts & PYQs Covered | JEE Main & Advanced — JEE Wallah, 6:43:16
  Jump to a subtopic (41)

  • 00:00 Introduction
  • 02:30 Topics to be covered
  • 08:00 Surprise reveal
  • 09:38 Solvent
  • 23:25 Electrophile
  • 31:00 Nucleophile
  • 35:33 Formation of Carbocation
  • 47:17 Acid-Base Reaction
  • 55:20 Carbanion
  • 1:02:21 Reactions with Metals
  • 1:17:24 Preparation of Alkane
  • 1:25:00 Elimination & Addition Reaction
  • 1:27:11 Reactions of Alkene
  • 1:47:35 Hydrogenation of Alkenes
  • 1:59:33 Rearrangement in Alkenes
  • 2:22:58 Hydration of Alkenes
  • 2:29:30 Oxymercuration - Demercuration Reaction
  • 2:35:09 Hydrobortion - Oxydation Reaction
  • 2:39:34 Syn-Dihydroxylation Reactions
  • 2:47:15 Anti-Dihydroxylation Reactions
  • 2:54:08 Stereo-Chemistry in Reactions of Alkene
  • 3:13:38 Kharasch/Peroxide Effect
  • 3:39:33 Electrophilic Addition Reactions of Alkyne
  • 3:44:28 Test for Unsaturation in Alkynes
  • 3:48:56 Hydrogenation of Alkynes
  • 3:59:13 Hydration of Alkynes
  • 4:08:32 Ozonolysis
  • 4:34:03 No. of π bonds & Hydrogenation
  • 4:38:55 Reactions of Benzene
  • 4:42:46 ESR for Benzene
  • 5:03:31 Halogenation of Benzene
  • 5:13:43 Nitration of Benzene
  • 5:19:26 Sulphonation of Benzene
  • 5:23:54 Friedel Craft Reaction
  • 5:40:24 Preparation of Benzene
  • 6:01:00 Free Radical Substitution Reaction
  • 6:26:40 Reactivity Vs Selectivity
  • 6:28:54 Isomerisation
  • 6:30:40 Aromatisation of Alkanes
  • 6:32:30 Physical Properties
  • 6:42:33 Thankyou bachhon
• Hydrocarbons One Shot | #BounceBack Series | Unacademy Atoms | JEE Chemistry | Sakshi Vora — JEE Legends, 7:07:12

• 11 JEE Main 2026 PYQs on Hydrocarbons, with solutions.
• Read the chapter in NCERT textbooks (official, free), then solve its NCERT Exemplar (official, free) questions.
• Chapter-wise past questions: JEE Main and Advanced PYQs and question bank.
• Timed practice tests: NTA Abhyas practice tests (official, free) and our free mock tests.
• See it move: interactive simulation.