JEEVisionary rocket logoJEEVisionaryIIT Mission Control
Join
Chemistry · Class 11 · Some Basic Principles of Organic Chemistry

General Organic Chemistry (GOC) for JEE

Everything you need for this topic on one page: the ideas, the formulas, the traps, and free lectures that explain it well.

Last updated: 26 October 2026

Direct answer

IUPAC naming, isomerism, inductive, resonance and hyperconjugation effects, carbocations, carbanions, free radicals and reaction types.

IUPAC naming, isomerism, inductive, resonance and hyperconjugation effects, carbocations, carbanions, free radicals and reaction types.

Key ideas

General Organic Chemistry (GOC): what you must understand

  • Stability of carbocations: 3° > 2° > 1° > methyl (plus resonance)
  • −I and −M groups increase acidity
  • Hyperconjugation explains alkyl group stabilisation
  • Nucleophiles are electron-rich; electrophiles electron-poor
Formula sheet

Must-know formulas for General Organic Chemistry (GOC)

  • Degree of unsaturation = (2C + 2 + N − H − X)/2
  • Acidity order example: HCOOH > CH₃COOH
  • Phenol is more acidic than alcohol due to resonance
  • Optical isomers = 2ⁿ (n chiral centres, unsymmetrical)
Print

One-page formula sheet

Printable General Organic Chemistry (GOC) formula sheet: formulas, key ideas and traps on one page. Save it as a PDF for offline revision.

Avoid

Common mistakes students make

  • Ignoring resonance when comparing stability
  • Wrong priority in IUPAC naming
  • Counting optical isomers for symmetric molecules with 2ⁿ
For the exam

How this topic is asked in JEE

Appears frequently. GOC is the base of all organic chemistry. Weak GOC is the main reason students fear organic.

Prerequisites: Chemical Bonding and Molecular Structure.

NCERT map

Where General Organic Chemistry (GOC) is in NCERT

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

ClassBookChapterSections JEE asks from
Class 11Chemistry Part IIOrganic Chemistry: Some Basic Principles and TechniquesNomenclature of Organic Compounds; Isomerism; Electronic Displacements in a Covalent Bond; Inductive Effect; Resonance Structure
JEE Advanced level

A JEE Advanced-level example on General Organic Chemistry (GOC)

Question. Consider the following carbocation intermediates: (I) (CH₃)₃C⁺ (tert-butyl cation) (II) CH₂=CH−CH₂⁺ (allyl cation) (III) C₆H₅−CH₂⁺ (benzyl cation) (IV) CH₃−CH₂−CH₂⁺ (n-propyl cation) Arrange these carbocations in order of increasing stability and identify the primary stabilization effect responsible for the stability of carbocation (II).

Show solution
  1. Identify the type of each carbocation: (I) is tertiary, (IV) is primary, (II) is allylic, and (III) is benzylic
  2. Primary carbocation (IV) is least stable as it has minimal stabilization from weak +I effect and only 2 alpha H atoms for hyperconjugation
  3. Tertiary carbocation (I) is stabilized by +I effect of three CH₃ groups and hyperconjugation from 9 alpha hydrogen atoms
  4. Allyl cation (II) is stabilized by resonance: CH₂=CH−CH₂⁺ ↔ ⁺CH₂−CH=CH₂, where positive charge is delocalized over two carbons
  5. Benzyl cation (III) has the most extensive resonance stabilization as the positive charge delocalizes into the benzene ring at ortho and para positions
  6. Since resonance effect > hyperconjugation > inductive effect, the stability order is: IV < I < II < III

Answer: Increasing stability order: IV < I < II < III (n-propyl < tert-butyl < allyl < benzyl). The primary stabilization effect for allyl cation (II) is resonance.

This example was solved twice independently and both solutions agree.

Free lectures

Best free lectures for General Organic Chemistry (GOC)

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.

Practise

Where to practise for free

FAQs

Frequently asked questions

Is General Organic Chemistry (GOC) important for JEE Main 2027?

Appears frequently. It is part of the official 'Some Basic Principles of Organic Chemistry' unit in the JEE Main 2027 syllabus.

What are the most important formulas in General Organic Chemistry (GOC)?

Degree of unsaturation = (2C + 2 + N − H − X)/2; Acidity order example: HCOOH > CH₃COOH; Phenol is more acidic than alcohol due to resonance.

How should I study General Organic Chemistry (GOC) for JEE?

Understand the key ideas from NCERT or one full lecture, learn the formula sheet, then solve 25–30 past JEE questions on the topic. GOC is the base of all organic chemistry. Weak GOC is the main reason students fear organic.

WA✎
Sitemap