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Saturday, 10 October

NEET UG 2019 · Chemistry · Question 65

NEET 2019 Chemistry, question 65

Question 65 of the NEET 2019 paper (code P1) is a Chemistry question from Haloalkanes and Haloarenes. Its idea, Preparation of Haloarenes, was asked twice, in 2019 and 2022, across NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q65 · Chemistry

Among the following, the reaction that proceeds through an electrophilic substitution, is :

The figure, described in words

Options drawn as reactions with benzene-ring structures; option 3 product drawn as cyclohexane ring bearing six Cl.

  1. 1C6H5N2+Cl−→Cu2Cl2C6H5Cl+N2C_6H_5N_2^+Cl^- \xrightarrow{Cu_2Cl_2} C_6H_5Cl + N_2
  2. 2C6H6+Cl2→AlCl3C6H5Cl+HClC_6H_6 + Cl_2 \xrightarrow{AlCl_3} C_6H_5Cl + HClOfficial answer
  3. 3C6H6+Cl2→UV lightC_6H_6 + Cl_2 \xrightarrow{UV\ light} 1,2,3,4,5,6-hexachlorocyclohexane (C6H6Cl6C_6H_6Cl_6)
  4. 4C6H5CH2OH+HCl→heatC6H5CH2Cl+H2OC_6H_5CH_2OH + HCl \xrightarrow{heat} C_6H_5CH_2Cl + H_2O

Official answer: option 2 · NTA final answer key

Same idea

Preparation of Haloarenes, in other papers

NEET asked this idea twice, in 2019 and 2022. The other question below.

  • 2022 Q77Which of the following is suitable to synthesize chlorobenzene ?One-line MCQ · Easy

Preparation of Haloarenes: 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