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JEE Main 202523 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
23 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2025 · 23 January · Morning Shift · Chemistry · Aldehydes and Ketones

The major product of the following reaction is: CH_3 CH_2 CH=O [...

The major product of the following reaction is: CH3CH2\mathrm{CH}_3 \mathrm{CH}_2\mathrm{CH}=\mathrm{O}→ reflux  excess HCHO alkali \xrightarrow[\text{ reflux }]{\substack{\text{ excess } \mathrm{HCHO} \\ \text{ alkali }}} ?The major product of the following reaction is: CH_3 CH_2 CH=O [ reflux ] excess HCHO alkali ?The major product of the following reaction is: CH_3 CH_2 CH=O [ reflux ] excess HCHO alkali ?The major product of the following reaction is: CH_3 CH_2 CH=O [ reflux ] excess HCHO alkali ?The major product of the following reaction is: CH_3 CH_2 CH=O [ reflux ] excess HCHO alkali ?The major product of the following reaction is: CH_3 CH_2 CH=O [ reflux ] excess HCHO alkali ?

Options

  1. ALet the domain of the function f(x)= _2 _4 _6 (3+4 x-x^2) be (a, ~b) . If ∫_0^ b-a [x^2] dx=p - q - r , p, q, r ∈ ℕ,
  2. BLet the domain of the function f(x)= _2 _4 _6 (3+4 x-x^2) be (a, ~b) . If ∫_0^ b-a [x^2] dx=p - q - r , p, q, r ∈ ℕ,
  3. CLet the domain of the function f(x)= _2 _4 _6 (3+4 x-x^2) be (a, ~b) . If ∫_0^ b-a [x^2] dx=p - q - r , p, q, r ∈ ℕ,
  4. DLet the domain of the function f(x)= _2 _4 _6 (3+4 x-x^2) be (a, ~b) . If ∫_0^ b-a [x^2] dx=p - q - r , p, q, r ∈ ℕ,

Correct answer

A. Let the domain of the function f(x)= _2 _4 _6 (3+4 x-x^2) be (a, ~b) . If ∫_0^ b-a [x^2] dx=p - q - r , p, q, r ∈ ℕ,

Step-by-step solution

This is an example of Tollen's reaction i.e. multiple cross aldol followed by cross Cannizaro reaction The major product of the following reaction is: CH_3 CH_2 CH=O [ reflux ] excess HCHO alkali ?
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