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Question

In Biuret test, the presence of ________ is indicated by violet colour.

A
fats
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B
proteins
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C
vitamins
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D
carbohydrates
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Solution

The correct option is B proteins
  • In the Biuret test, a few drops of copper sulphate solution followed by few drops of sodium hydroxide solution is added to the food items.
  • The colour change to violet signifies the presence of proteins in it.

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