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Friday, 9 October

NEET UG 2017 · Chemistry · Question 80

NEET 2017 Chemistry, question 80

Question 80 of the NEET 2017 paper (code A) is a Chemistry question from Haloalkanes and Haloarenes. Its idea, Benzyne Elimination-Addition, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 1.

Updated 2026-10-08

Q80 · Chemistry

Identify A and predict the type of reaction

[m-bromoanisole (benzene ring with OCH3\mathrm{OCH_3} and Br meta to it)] →NaNH2\xrightarrow{NaNH_2} A

The figure, described in words

Reactant: benzene ring with OCH3 at C-1 and Br at C-3, treated with NaNH2; option products drawn as ring structures (m-NH2, o-NH2, o-Br, unsubstituted anisole).

  1. 1[structure: m-methoxyaniline — ring with OCH3 and NH2 meta] and substitution reactionOfficial answer
  2. 2[structure: o-methoxyaniline — ring with OCH3 and NH2 ortho] and elimination addition reaction
  3. 3[structure: o-bromoanisole — ring with OCH3 and Br ortho] and cine substitution reaction
  4. 4[structure: anisole — ring with OCH3 only] and cine substitution reaction

Official answer: option 1 · CBSE official answer key

Same idea

The only question on Benzyne Elimination-Addition

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

Benzyne Elimination-Addition: every question and how it was framed

The chapter

Haloalkanes and Haloarenes in ten years of NEET

16 questions from 2017–2026, asked in 10 of 10 papers, about 1.5 a paper. Nucleophilic Substitution alone had 16.

Haloalkanes and Haloarenes: questions per paper

0241’171’181’191’202’212’223’233’241’251’26