JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumApplication

JEE Main 24 June 2022, Shift 1, Chemistry Q89

Question 89 of 90 in this shift, Chemistry question 29 of 30, Section B.

Number of electrophilic centres in the given compound is ______.

The figure, in words

Naphthalene ring bearing a -CH2-CH=CH-C(=O)-CH3 side chain at one position (C1) and a -CH2CN group at another position (C7).

Official answer

NTA final key (2022 Session 1).

Chapter: Organic Chemistry: Some Basic Principles and Techniques
Topic: Nucleophilic Addition
Idea tested: 1,2- vs 1,4-Addition to Conjugated Carbonyls

Same topic in other shifts

All Nucleophilic Addition questions

2 Apr 2026, Shift 2 · Q67A molecule (X) with following structure under mild acidic condition is hydrolysed to produce (Y) and (Z). Identify the correct statements…MediumSingle correct
5 Apr 2026, Shift 2 · Q66Given below are two statements : Statement I : The condensation reaction between $\mathrm{CH_3-CH=O}$ and $\mathrm{H_2N-NH-C(=O)-NH_2}$ …MediumTwo statements
7 Apr 2025, Shift 2 · Q68"P" is an optically active compound with molecular formula $\mathrm{C_6H_{12}O}$ . When 'P' is treated with 2, 4-dinitrophenylhydrazine, it…MediumDiagram basedHas a figure
6 Apr 2024, Shift 2 · Q78Consider the given reaction, identify the major product P. $\mathrm{CH_3-COOH}$ …MediumSingle correct
31 Jan 2024, Shift 1 · Q89The product of the following reaction is P. 4-Hydroxybenzaldehyde, (i) PhMgBr (1 equiv.), (ii) aq. $\mathrm{NH_4Cl}$ , gives P The number…MediumNumerical valueHas a figure
25 Jul 2021, Shift 1 · Q43[figure: but-3-en-2-one, CH2=CH-C(=O)-CH3, treated with (i) $\mathrm{C_2H_5MgBr}$ , dry ether (ii) $\mathrm{H_2O}$ , HCl giving P (Major…HardSingle correctHas 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.