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Saturday, 31 October

JEE Main 2025 · ChemistryMultiple choiceDiagram basedEasyRecall

JEE Main 3 April 2025, Shift 1, Chemistry Q69

Question 69 of 75 in this shift, Chemistry question 19 of 25, Section A.

In the following reactions, which one is NOT correct?

The figure, in words

Four reactions of benzenediazonium chloride (C6H5-N2+ Cl-) with different reagents.
  1. (1)[figure: benzenediazonium chloride --EtOH--> phenyl ethyl ether (OEt on benzene)]Official answer
  2. (2)[figure: benzenediazonium chloride --H3PO2/H2O--> benzene]
  3. (3)[figure: benzenediazonium chloride --CuCN/KCN--> benzonitrile (CN on benzene)]
  4. (4)[figure: benzenediazonium chloride --Potassium Iodide--> iodobenzene]

Official answer

Option 1

NTA final key.

Chapter
Amines
Topic
Diazonium Salts
Idea tested
Reduction to Benzene via Ethanol

Same idea in other shifts

Asked 4× in all
  1. 6 Apr 2026, Shift 2 · Q67Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all…HardSingle correctHas a figure
  2. 30 Jun 2022, Shift 1 · Q77[structure: A + CH3CH2OH\mathrm{CH_3CH_2OH} ⟶\longrightarrow benzene ring]…MediumDiagram basedHas a figure
  3. 17 Mar 2021, Shift 2 · Q47C7H7N2OCl+C2H5OH⟶\mathrm{C_7H_7N_2OCl + C_2H_5OH} \longrightarrow [structure] +N2+"X"+"Y"+ \mathrm{N_2} + \text{"X"} + \text{"Y"} (A) In the above reaction, the…MediumDiagram basedHas a figure

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 108 of the 174 JEE Main shifts held from 2017 to 2026.