Question : _____test is used as an indicator of the presence of protei

1.	Question : _____test is used as an indicator of the presence of protein.
Answer» Solution :The biuret test is used as an indicator of the presence of PROTEIN because it gives a purple colour in the presence of PEPTIDE bonds (-C-N-). To a protein solution an equal quantity of sodium hydroxide solution is added and mixed. Then a few DROPS of 0.5% copper (II) sulphate is added with GENTLE mixing. a distinct purple colour developls without heating.

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