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Friday, 9 October

NEET UG 2025 · Chemistry · Question 83

NEET 2025 Chemistry, question 83

Question 83 of the NEET 2025 paper (code 45) is a Chemistry question from Aldehydes, Ketones and Carboxylic Acids. Its idea, Partial Reduction to Aldehydes, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q83 · Chemistry

Identify the suitable reagent for the following conversion.

C6H5COOCH3→C6H5CHOC_6H_5COOCH_3 \to C_6H_5CHO

The figure, described in words

Conversion drawn as bond-line structures: methyl benzoate to benzaldehyde.

  1. 1(i) LiAlH4LiAlH_4, (ii) H+/H2OH^+/H_2O
  2. 2(i) AlH(iBu)2AlH(iBu)_2 (ii) H2OH_2OOfficial answer
  3. 3(i) NaBH4NaBH_4, (ii) H+/H2OH^+/H_2O
  4. 4H2H_2 / Pd-BaSO4BaSO_4

Official answer: option 2 · NTA final answer key

Same idea

The only question on Partial Reduction to Aldehydes

No other NEET paper from 2017–2026 tested this exact idea.

Partial Reduction to Aldehydes: every question and how it was framed

The chapter

Aldehydes, Ketones and Carboxylic Acids in ten years of NEET

27 questions from 2017–2026, asked in 10 of 10 papers, about 2.6 a paper. Aldehydes, Ketones and Carboxylic Acids alone had 22.

Chapter analysisStudy this chapterPractise this chapter

Aldehydes, Ketones and Carboxylic Acids: questions per paper

0242’171’181’192’204’214’223’234’243’253’26