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JEE Main 202131 AugustEvening Shift
Exam
JEE Main
Year
2021
Date
31 August
Shift
Evening Shift
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

JEE Main 2021 · 31 August · Evening Shift · Chemistry · Haloalkanes and Haloarenes

The major product of the following reaction is :

The major product of the following reaction is :
The major product of the following reaction is :

Options

  1. AThe wave function (Ψ) of 2s is given by Ψ _ 2s = 1 2 2π ( 1 a _ 0 ) ^ 1 / 2 (2 - r a _ 0 ) e ^ - r / 2 a _ 0 At r = r _
  2. BThe wave function (Ψ) of 2s is given by Ψ _ 2s = 1 2 2π ( 1 a _ 0 ) ^ 1 / 2 (2 - r a _ 0 ) e ^ - r / 2 a _ 0 At r = r _
  3. CThe wave function (Ψ) of 2s is given by Ψ _ 2s = 1 2 2π ( 1 a _ 0 ) ^ 1 / 2 (2 - r a _ 0 ) e ^ - r / 2 a _ 0 At r = r _
  4. DThe wave function (Ψ) of 2s is given by Ψ _ 2s = 1 2 2π ( 1 a _ 0 ) ^ 1 / 2 (2 - r a _ 0 ) e ^ - r / 2 a _ 0 At r = r _

Correct answer

B. The wave function (Ψ) of 2s is given by Ψ _ 2s = 1 2 2π ( 1 a _ 0 ) ^ 1 / 2 (2 - r a _ 0 ) e ^ - r / 2 a _ 0 At r = r _

Step-by-step solution

NaOHandC2H5OHNaOH\text{and}{C}_{2}{H}_{5}OH is alcoholicNaOHNaOH which is used for dehydrohalogenation of alkenes. This beta elimination is anti-elimination and Saytzeff alkene (more stable) is major product. In the given reaction, more stable conjugated alkene is formed as major product.

The major product of the following reaction is :Note : There is ambiguity in answer given by NTA which is 44.

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