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JEE Main 201912 AprilEvening Shift
Exam
JEE Main
Year
2019
Date
12 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Amines

JEE Main 2019 · 12 April · Evening Shift · Chemistry · Amines

Benzene diazonium chloride on reaction with aniline in the presence...

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

Options

  1. AThe values of Δ H and Δ S for the reaction, C_ (graphite) +CO_2( g) 2 CO(g) are 170 kJ and 170 JK^ -1 , respectively.
  2. BThe values of Δ H and Δ S for the reaction, C_ (graphite) +CO_2( g) 2 CO(g) are 170 kJ and 170 JK^ -1 , respectively.
  3. CThe values of Δ H and Δ S for the reaction, C_ (graphite) +CO_2( g) 2 CO(g) are 170 kJ and 170 JK^ -1 , respectively.
  4. DThe values of Δ H and Δ S for the reaction, C_ (graphite) +CO_2( g) 2 CO(g) are 170 kJ and 170 JK^ -1 , respectively.

Correct answer

A. The values of Δ H and Δ S for the reaction, C_ (graphite) +CO_2( g) 2 CO(g) are 170 kJ and 170 JK^ -1 , respectively.

Step-by-step solution

Aniline reacts with a mixture of sodium nitrite and hydrochloric acid and forms benzene diazonium chloride.The structure of Benzene diazonium chloride is

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

Benzene diazonium chloride reacts with aniline in presence of dilute hydrochloric acid and undergoes coupling reaction and produces stable azo products. In this reaction, benzene diazonium chloride acts as an electrophile in coupling with activated aniline. In this type of reaction, substitution takes place at the para position. So, the reaction Benzene diazonium chloride with aniline in presence of dilute hydrochloric acid is as follows:

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

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