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Friday, 9 October

NEET UG 2017 · Chemistry · Question 89

NEET 2017 Chemistry, question 89

Question 89 of the NEET 2017 paper (code A) is a Chemistry question from Organic Chemistry - Some Basic Principles and Techniques. Its idea, Functional Group Priority, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 1.

Updated 2026-10-08

Q89 · Chemistry

The IUPAC name of the compound OHC−CH(CH3)−CO−CH=CH−CH3\mathrm{OHC-CH(CH_3)-CO-CH=CH-CH_3} is

The figure, described in words

Bond-line structure: H-C(=O)-CH(CH3)-C(=O)-CH=CH-CH3.

  1. 13-keto-2-methylhex-4-enalOfficial answer
  2. 25-formylhex-2-en-3-one
  3. 35-methyl-4-oxohex-2-en-5-al
  4. 43-keto-2-methylhex-5-enal

Official answer: option 1 · CBSE official answer key

Same idea

The only question on Functional Group Priority

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

Functional Group Priority: every question and how it was framed

The chapter

Organic Chemistry - Some Basic Principles and Techniques in ten years of NEET

22 questions from 2017–2026, asked in 10 of 10 papers, about 2.1 a paper. Organic Nomenclature alone had 5.

Organic Chemistry - Some Basic Principles and Techniques: questions per paper

0243’173’181’192’201’212’222’233’243’252’26