The albumin (white part) of egg gives purple/violet colour with the solution of copper sulphate and sodium hydroxide. This shows that ___ is present in it.

carbohydrate

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protein

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vitamin

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fat

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Solution

The correct option is B protein
If a food gives purple or violet colour with the solution of copper sulphate and sodium hydroxide, we can say that protein is present in it. The solution of copper sulphate and sodium hydroxide, is called 'biuret solution' and is blue in colour and it turns to violet or purple colour upon reacting with proteins.

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Similar questions

The albumin (white part) of egg gives purple/violet colour with the solution of copper sulfate and caustic soda. This shows that ________ is present in it.

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The albumin (white part) of egg gives violet color with copper sulphate solution and caustic soda. On the basis of this we can say that________ is present in it.

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The albumin (white part) of egg gives violet color with the solution of copper sulfate and caustic soda. On the basis of this, we can say that________ is present in it.

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