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JEE Main 202225 JulyEvening Shift
Exam
JEE Main
Year
2022
Date
25 July
Shift
Evening Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2022 · 25 July · Evening Shift · Chemistry · Aldehydes and Ketones

CH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _...

CH3−CH2−CN→EtherCH3MgBrA→H3O+B→HClZn−HgC{CH}_{3} - {CH}_{2} - CN\mathop{\to}_{Ether}^{{CH}_{3}MgBr}A\overset{{H}_{3}{O}^{+}}{\to}B\mathop{\to}_{HCl}^{Zn - Hg}C. The correct structure of CC isCH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C isCH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C isCH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C isCH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C isCH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C isCH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C is

Options

  1. AThe calculated spin-only magnetic moments of K_3[Fe(OH)_6] and K_4[Fe(OH)_6] respectively are :
  2. B

    The calculated spin-only magnetic moments of K_3[Fe(OH)_6] and K_4[Fe(OH)_6] respectively are :

  3. C

    The calculated spin-only magnetic moments of K_3[Fe(OH)_6] and K_4[Fe(OH)_6] respectively are :

  4. DCH3−CH2−CH=CH2{CH}_{3} - {CH}_{2} - CH = {CH}_{2}

Correct answer

A. The calculated spin-only magnetic moments of K_3[Fe(OH)_6] and K_4[Fe(OH)_6] respectively are :

Step-by-step solution

First, in this reaction the nitrile will react with the Grignard reagent. The reaction can be written as:

CH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C isIn this step, MgBrMgBr gets attached to the nitrogen atom and alkyl anion attacks on the electrophilic carbon of the nitrile.This step leads to the formation of imine.

Now, this reaction will further take place accordingly in the presence of aqueous acid. The reaction can be written as:

CH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C is

Clemmenson reagent acts only on aldehydes and ketones. Therefore, butan-22-one will get reduced to butane when we treat it with zinc and hydrochloric acid.

CH _ 3 - CH _ 2 - CN → _ Ether ^ CH _ 3 MgBr A H _ 3 O ^ + → B → _ HCl ^ Zn - Hg C . The correct structure of C is

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