Consider the following reaction:
Question:

Consider the following reaction:

The product ‘ $X$ ‘ is used:

  1.  in protein estimation as an alternative to ninhydrin

  2. in acid base titration as an indicator

  3. as food grade colourant

  4. in laboratory test for phenols


Correct Option: , 2

Solution:

Methyl orange is used as an indicator in acid base titrations.

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