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Friday, 9 October

NEET UG 2018 · Chemistry · Question 55

NEET 2018 Chemistry, question 55

Question 55 of the NEET 2018 paper (code AA) is a Chemistry question from Amines. Its idea, Direct Nitration Anomaly of Aniline, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 4.

Updated 2026-10-08

Q55 · Chemistry

Nitration of aniline in strong acidic medium also gives m-nitroaniline because

  1. 1In absence of substituents nitro group always goes to m-position.
  2. 2In electrophilic substitution reactions amino group is meta directive.
  3. 3In spite of substituents nitro group always goes to only m-position.
  4. 4In acidic (strong) medium aniline is present as anilinium ion.Official answer

Official answer: option 4 · CBSE official answer key

Same idea

The only question on Direct Nitration Anomaly of Aniline

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

Direct Nitration Anomaly of Aniline: every question and how it was framed

The chapter

Amines in ten years of NEET

18 questions from 2017–2026, asked in 10 of 10 papers, about 1.7 a paper. Amines and Diazonium Salts alone had 18.

Amines: questions per paper

0242’171’181’191’202’212’222’232’243’252’26