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JEE Main 20207 JanuaryMorning Shift
Exam
JEE Main
Year
2020
Date
7 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Amines

JEE Main 2020 · 7 January · Morning Shift · Chemistry · Amines

Consider the following reaction: The product ' X ^ ' is used:

Consider the following reaction:
Consider the following reaction: The product ' X ^ ' is used:
The product ′X′'{X}^{'} is used:

Options

  1. Ain protein estimation as an alternative to ninhydrin
  2. Bin acid base titration as an indicator
  3. Cas food grade colourant
  4. Din laboratory test for phenols

Correct answer

B. in acid base titration as an indicator

Step-by-step solution

Consider the following reaction: The product ' X ^ ' is used:
Methyl orange is used as indicator in acid base titration.

Azo coupling is the most widely used industrial reaction in the production of dyes, lakes and pigments. Aromatic diazonium ions acts as electrophiles in coupling reactions with activated aromatics such as anilines or phenols.

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