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JEE Advanced 2023Paper 1
Exam
JEE Advanced
Year
2023
Paper
Paper 1
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Advanced 2023 · Paper 1 · Chemistry · Aldehydes and Ketones

The major products obtained from the reactions in List-II are the...

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in List-I. Match List-I with List-II and choose the correct option.

List I List II
(P)( P ) Etard reaction 11 Acetophenone\overset{Zn - Hg, HCl}{\to}</td></tr><tr><td></td> </tr> <tr> <td>( Q )</td><td>Gattermannreaction</td><td></td> <td>Gattermann reaction</td> <td>2</td><td>Toluene→(ii)SOCl2(i)KMnO4,KOH,Δ</td> <td>Toluene\mathop{\to}_{( ii ) {SOCl}_{2}}^{( i ) {KMnO}_{4}, KOH, \Delta}
(R)( R ) Gattermann-Koch reaction 33 Benzene\mathop{\to}_{Anhyd . {AlCl}_{3}}^{{CH}_{3}Cl}</td></tr><tr><td></td> </tr> <tr> <td>( S )</td><td>Rosenmundreduction</td><td></td> <td>Rosenmund reduction</td> <td>4</td><td>AnilineNaNO2/HCl273−278K</td> <td>Aniline\dfrac{{NaNO}_{2} / HCl}{273 - 278K}
55 Phenol\overset{Zn, \Delta}{\to}$

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned inThe major products obtained from the reactions in List-II are the reactants for the named reactions mentioned inThe major products obtained from the reactions in List-II are the reactants for the named reactions mentioned inThe major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in

Options

  1. AP→2;Q→4;R→1;S→3P \to 2; Q \to 4; R \to 1; S \to 3
  2. BP→1;Q→3;R→5;S→2P \to 1; Q \to 3; R \to 5; S \to 2
  3. CP→3;Q→2;R→1;S→4P \to 3; Q \to 2; R \to 1; S \to 4
  4. DP→3;Q→4;R→5;S→2P \to 3; Q \to 4; R \to 5; S \to 2

Correct answer

D. P→3;Q→4;R→5;S→2P \to 3; Q \to 4; R \to 5; S \to 2

Step-by-step solution

Toluene is formed in the Friedel Craft's reaction, which is the reactant in Etard reaction. The Etard reaction is a chemical reaction that involves the direct oxidation of an aromatic or heterocyclic bound methyl group to an aldehyde using chromyl chloride.

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in

Aniline on diazotization reaction gives benzene diazonium salt, which is the starting material for Gattermann reaction. Gattermann reaction is used for obtaining chlorobenzene or bromobenzene from benzenediazonium chloride by treating it with Cu/HClorCu/HBrCu / HClorCu / HBr respectively.

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in

Phenol gives benzene on reaction with zinc dust, which is the starting material for Gattermann-Koch reaction. The Gattermann-Koch reaction may simply be defined as a chemical transformation in which aromatic compounds are formylated by a mixture of carbon monoxide and hydrogen chloride in the presence of a Lewis acid catalyst such as AlCl3{AlCl}_{3} .

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in

Toluene on oxidation with potassium permanganate in basic medium gives benzoic acid. The benzoic acid on reaction with thionyl chloride gives benzoyl chloride. The acid chloride formed is the starting material for the Rosenmund reduction. The Rosenmund reduction is a hydrogenation process in which an acyl chloride is selectively reduced to an aldehyde.

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in

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