Class 11 · Chemistry

Reaction Mechanism

6 topics — from Addition Reaction through Substitution Reactions in Ethers. Expect about 1 question in NEET — roughly 4 of 720 marks.

Updated 25 Aug 2026 6 topics Chemistry · Class 11
In short

Reaction Mechanism is a Class 11 Chemistry chapter covering 6 topics. Expect about 1 question in NEET — roughly 4 of 720 marks.

6
Topics
In this chapter
1
Expected question
≈ 4 of 720 marks
11
Class
Chemistry
97
Chapters in the syllabus
32 in Chemistry

Topics covered #

6 topics, in teaching order.

  1. Addition Reaction
  2. Substitution Reaction
  3. Introduction to substitution Reactions
  4. SN1 & SN2 Reactions
  5. Substitution Reactions in Alcohols
  6. Substitution Reactions in Ethers

Weightage #

Expect about 1 question in NEET — roughly 4 of 720 marks.

1 of 180 questions · 4 of 720 marks
This chapter's share of the paper. Weightage is indicative — it reflects how many questions have typically come from here, not a guarantee for any single year.

Practise this chapter #

Reading it once is not the same as being able to answer it under time.

Practice questionsChapter-wise MCQs with solutions Video lecturesTopic-by-topic walkthroughs Chapter testExam-format, timed NEET previous-year questionsPast questions from this chapter AIIMS previous-year questionsOlder AIIMS papers, same syllabus

Next in Chemistry

← PreviousChemistry in Everyday Life

Frequently asked #

How many questions come from Reaction Mechanism in NEET?
About 1 question — roughly 4 of the 720 marks available. It is a Class 11 Chemistry chapter.
What topics does this chapter cover?
6 topics — from Addition Reaction through Substitution Reactions in Ethers. The full list is above.
Where can I practise Reaction Mechanism?
Chapter-wise MCQs, video lectures, a timed chapter test, and both NEET and AIIMS previous-year questions — all linked above.