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Friday, 9 October

NEET UG 2018 · Chemistry · Question 62

NEET 2018 Chemistry, question 62

Question 62 of the NEET 2018 paper (code AA) is a Chemistry question from Hydrocarbons. Its idea, Wurtz Reaction Mechanism, was asked twice, in 2018 and 2020, across NEET 2017–2026. The CBSE official answer key gives option 4.

Updated 2026-10-08

Q62 · Chemistry

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is

  1. 1CH3−CH3\mathrm{CH_3-CH_3}
  2. 2CH2=CH2\mathrm{CH_2=CH_2}
  3. 3CH≡CH\mathrm{CH\equiv CH}
  4. 4CH4\mathrm{CH_4}Official answer

Official answer: option 4 · CBSE official answer key

Same idea

Wurtz Reaction Mechanism, in other papers

NEET asked this idea twice, in 2018 and 2020. The other question below.

  • 2020 Q134Which of the following alkane cannot be made in good yield by Wurtz reaction ?One-line MCQ · Medium

Wurtz Reaction Mechanism: every question and how it was framed

The chapter

Hydrocarbons in ten years of NEET

25 questions from 2017–2026, asked in 10 of 10 papers, about 2.4 a paper. Hydrocarbons (Alkanes) alone had 9.

Hydrocarbons: questions per paper

0363’171’182’192’204’212’222’231’245’253’26