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Friday, 9 October

JEE Main 2026 · ChemistryMultiple choiceSingle correctMediumMulti-step

JEE Main 5 April 2026, Shift 2, Chemistry Q65

Question 65 of 75 in this shift, Chemistry question 15 of 25, Section A.

Complete the following reaction sequence and give the name of major product 'P'. CH3CH2C≡N\mathrm{CH_3CH_2C{\equiv}N} →(i) OH−/H2O/Δ; (ii) H3O+; (iii) Cl2/Red P; (iv) H2O\xrightarrow{\text{(i) OH}^-/\mathrm{H_2O}/\Delta;\ \text{(ii) }\mathrm{H_3O^+};\ \text{(iii) }\mathrm{Cl_2}/\text{Red P};\ \text{(iv) }\mathrm{H_2O}} P (Major product)

The figure, in words

Skeletal structure of a nitrile (zig-zag chain of two bonds then C triple-bond N, i.e. propanenitrile CH3CH2C≡N) with arrow labelled (i) OH-/H2O/Delta, (ii) H3O+, (iii) Cl2/Red P, (iv) H2O giving P (Major product).
  1. (1)2-Chloropropanoic acidOfficial answer
  2. (2)3-Chloropropanoic acid
  3. (3)1-Chloropropane
  4. (4)2-Chloropropane

Official answer

Option 1

NTA final key.

Chapter
Aldehydes, Ketones and Carboxylic Acids
Topic
Carboxylic Acids and Derivatives
Idea tested
Hydrolysis of Nitriles

Same idea in other shifts

Asked 2× in all
  1. 18 Mar 2021, Shift 1 · Q45[figure: cyclohexyl-C#N --(H2O/H+)--> "A" (Major Product) --(H2O/H+, heat)--> cyclohexyl-COOH] Consider the above chemical reaction and…EasyDiagram 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 42 of the 174 JEE Main shifts held from 2017 to 2026.