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Chemistry

Organic Chemistry: Some Basic Principles and Techniques

IUPAC naming, isomerism, electronic effects like induction, resonance, and hyperconjugation, reaction intermediates, and purification and analysis techniques come together in this chapter. NEET favours application: rank carbocation stability or acid strength, name a structure, or recall a detection test like Lassaigne's.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

Organic Chemistry: Some Basic Principles and Techniques carried 4 questions in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from Organic Chemistry: Some Basic Principles and Techniques, with the answer and the working. Try before you peek.

Question 1 · NEET 2026

During Lassaigne's test, the elements present in an organic compound are converted from:
  1. A.Ionic form to ionic form
  2. B.Covalent form to ionic form
  3. C.Covalent form to covalent form
  4. D.Ionic form to covalent form
Answer and explanation

Answer: B

In Lassaigne's (sodium fusion) test the organic compound is fused with sodium metal, which converts the covalently bonded N, S and halogens into water-soluble ionic sodium salts (NaCN, Na2_{2}S, NaX). These ions are then detected in aqueous extract, so covalent forms are transformed into ionic forms.

How to practise Organic Chemistry: Some Basic Principles and Techniques

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free 12-question mock on the exam screen.

Nearby Chemistry chapters

Questions

How many questions did Organic Chemistry: Some Basic Principles and Techniques have in NEET 2026?

Organic Chemistry: Some Basic Principles and Techniques carried 4 questions in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise Organic Chemistry: Some Basic Principles and Techniques PYQs for NEET?

In the BrainIt app, free until the 2027 exam: its bank holds 50,000 past NTA questions tagged to all 83 chapters, including this one, with accuracy tracked per chapter. A sample question from this chapter is on this page.

Is Organic Chemistry: Some Basic Principles and Techniques important for NEET 2027?

It is part of the Chemistry syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

Something here wrong or out of date? Email [email protected] and a person will read it.