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Chemistry

Aldehydes, Ketones and Carboxylic Acids

A Chemistry chapter of the NEET syllabus, and how to practise it for the computer-based exam.

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

Aldehydes, Ketones and Carboxylic Acids 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 Aldehydes, Ketones and Carboxylic Acids, with the answer and the working. Try before you peek.

Question 1 · NEET 2020

Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :
  1. A.Sec. butyl alcohol
  2. B.Tert. butyl alcohol
  3. C.Isobutyl alcohol
  4. D.Isopropyl alcohol
Answer and explanation

Answer: B

The reaction of acetone with methylmagnesium chloride forms a tertiary alkoxide, which upon hydrolysis yields tert-butyl alcohol. This follows the Grignard reagent mechanism where the nucleophilic attack occurs at the carbonyl carbon, leading to the formation of a tertiary alcohol. Chapter: Aldehydes, Ketones and Carboxylic Acids.

Question 2 · NEET 2020

Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as
  1. A.Cannizzaro's reaction
  2. B.Cross Cannizzaro's reaction
  3. C.Cross Aldol condensation
  4. D.Aldol condensation
Answer and explanation

Answer: C

The reaction between benzaldehyde and acetophenone in the presence of dilute NaOH is a cross aldol condensation. This reaction involves the condensation of an aldehyde with a ketone to form a β\beta-hydroxy ketone. Chapter: Aldehydes, Ketones and Carboxylic Acids.

How to practise Aldehydes, Ketones and Carboxylic Acids

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 NEET mini mock with answers.

Nearby Chemistry chapters

Questions

How many questions did Aldehydes, Ketones and Carboxylic Acids have in NEET 2026?

Aldehydes, Ketones and Carboxylic Acids 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 Aldehydes, Ketones and Carboxylic Acids PYQs for NEET?

Explore available chapter-wise NEET practice in BrainIt, free until the 2027 exam. Review explanations and track chapter accuracy to guide your revision. Sample questions from this chapter are on this page.

Is Aldehydes, Ketones and Carboxylic Acids 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.

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