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Friday, 9 October

JEE Main 2025 · ChemistryMultiple choiceMatch the listEasyRecall

JEE Main 2 April 2025, Shift 2, Chemistry Q67

Question 67 of 75 in this shift, Chemistry question 17 of 25, Section A.

Match List - I with List - II. List - I (Reaction) (A) 2 C6H5-X+2Na→Dry EtherC6H5-C6H5+2NaX2\,\mathrm{C_6H_5\text{-}X} + 2\mathrm{Na} \xrightarrow{\text{Dry Ether}} \mathrm{C_6H_5\text{-}C_6H_5} + 2\mathrm{NaX} (X attached to a benzene ring; product biphenyl) (B) ArN2+X−→HClCuArCl+N2↑+CuX\mathrm{ArN_2^+X^-} \xrightarrow[\mathrm{HCl}]{\mathrm{Cu}} \mathrm{ArCl} + \mathrm{N_2}\uparrow + \mathrm{CuX} (C) C2H5Br+NaI→Dry AcetoneC2H5I+NaBr\mathrm{C_2H_5Br + NaI} \xrightarrow{\text{Dry Acetone}} \mathrm{C_2H_5I + NaBr} (D) CH3C(OH)(CH3)CH3→ZnCl2HClCH3C(Cl)(CH3)CH3\mathrm{CH_3C(OH)(CH_3)CH_3} \xrightarrow[\mathrm{ZnCl_2}]{\mathrm{HCl}} \mathrm{CH_3C(Cl)(CH_3)CH_3} List - II (Name of reaction) (I) Lucas reaction (II) Finkelstein reaction (III) Fittig reaction (IV) Gatterman reaction Choose the correct answer from the options given below :

The figure, in words

Reaction (A) is drawn with benzene rings: two halobenzene molecules (C6H5-X) react with 2Na in dry ether to give biphenyl (two benzene rings joined by a single bond) plus 2NaX.
  1. (1)(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
  2. (2)(A)-(III), (B)-(IV), (C)-(II), (D)-(I)Official answer
  3. (3)(A)-(III), (B)-(II), (C)-(IV), (D)-(I)
  4. (4)(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

Official answer

Option 2

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
SN1 and SN2 Mechanisms
Idea tested
Finkelstein Reaction

Same idea in other shifts

Asked 3× in all
  1. 4 Apr 2026, Shift 1 · Q65Match the LIST-I with LIST-II List-I (Name of reaction): A. Finkelstein reaction; B. Swarts reaction; C. Sandmeyer's reaction; D. Fittig…EasyMatch the list
  2. 6 Apr 2023, Shift 1 · Q75For the reaction RCH2Br+I−→AcetoneRCH2Imajor+Br−\mathrm{RCH_2Br + I^-}\xrightarrow{\text{Acetone}}\underset{\text{major}}{\mathrm{RCH_2I}}+\mathrm{Br^-} The correct…HardSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.