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Question: Answered & Verified by Expert
Consider the following reaction:

The product 'X' is used:
ChemistryAminesJEE MainJEE Main 2020 (07 Jan Shift 1)
Options:
  • A in protein estimation as an alternative to ninhydrin
  • B in acid base titration as an indicator
  • C as food grade colourant
  • D in laboratory test for phenols
Solution:
1599 Upvotes Verified Answer
The correct answer is: in acid base titration as an indicator


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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