JEE Main 2024 · ChemistryNumerical answerNumerical valueEasyConceptual

JEE Main 5 April 2024, Shift 1, Chemistry Q88

Question 88 of 90 in this shift, Chemistry question 28 of 30, Section B.

The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is ________. [figure: five monohalobenzenes I-V with substituents F (I), Cl (II), Br (III), I (IV), At (V)]

The figure, in words

Five benzene rings labelled I to V, bearing F, Cl, Br, I and At respectively.

Official answer

NTA final key.

Chapter: Haloalkanes and Haloarenes
Topic: Diazonium Salts
Idea tested: Sandmeyer Reaction

Same idea in other shifts

Asked 7× in all

6 Apr 2024, Shift 2 · Q77Identify the product (A) in the following reaction. Aniline (benzene ring with $\mathrm{NH_2}$ )…MediumDiagram basedHas a figure
15 Apr 2023, Shift 1 · Q75[figure: 4-nitrotoluene (benzene ring with $\mathrm{CH_3}$ at top and $\mathrm{NO_2}$ at bottom) $\longrightarrow\longrightarrow$ benzoic…HardDiagram basedHas a figure
24 Feb 2021, Shift 2 · Q47What is the correct sequence of reagents used for converting nitrobenzene into $m$ -dibromobenzene ? [Scheme: nitrobenzene $\rightarrow$ …MediumDiagram basedHas a figure
26 Feb 2021, Shift 2 · Q46Match List-I with List-II. List-I | List-II (a) [figure: benzene ring with $\mathrm{N_2^+Cl^-}$ ] $\xrightarrow{\mathrm{Cu_2Cl_2}}$ …MediumMatch the listHas a figure
9 Jan 2020, Shift 1 · Q42The major product Z obtained in the following reaction scheme is : (drawn starting material)…MediumDiagram basedHas a figure
4 Sep 2020, Shift 2 · Q42In the following reaction sequence, [C] is : [figure: ring drawn as a hexagon with a circle inside, $\mathrm{NH_2}$ at the top and…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.