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Friday, 9 October

NEET UG 2023 · Chemistry · Question 81

NEET 2023 Chemistry, question 81

Question 81 of the NEET 2023 paper (code G6) is a Chemistry question from Polymers. Its idea, Neoprene and Buna Rubbers, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.

Updated 2026-10-08

Q81 · Chemistry

Which amongst the following molecules on polymerization produces neoprene?

Printed as a drawing

Options: four drawn condensed structural formulas of dienes (isoprene, butadiene, chloroprene, etc.) with vertical CH3/Cl substituents (borderline: typed-style formulas).

  1. 1H2C=C(CH3)−CH=CH2\mathrm{H_2C=C(CH_3)-CH=CH_2}
  2. 2H2C=CH−CH=CH2\mathrm{H_2C=CH-CH=CH_2}
  3. 3H2C=C(Cl)−CH=CH2\mathrm{H_2C=C(Cl)-CH=CH_2}Official answer
  4. 4H2C=CH−C≡CH\mathrm{H_2C=CH-C\equiv CH}

Official answer: option 3 · NTA final answer key

Same idea

The only question on Neoprene and Buna Rubbers

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

Neoprene and Buna Rubbers: every question and how it was framed

The chapter

Polymers in ten years of NEET

6 questions from 2017–2026, asked in 6 of 10 papers, about 0.6 a paper. Polymers alone had 6.

Chapter analysis

Polymers: questions per paper

0240’171’181’191’201’211’221’230’240’250’26