Which will not give a violet colour with alkaline copper sulphate solution?A. Egg albumin B. Egg yolk C. Milk D. Cheese
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Answered by
3
Answer:
I thought chesse. But I am not sure
Answered by
10
Here u go ,
When two drops of copper sulphate and ten drops of caustic soda or NaOH is added to egg, it turns violet. This indicates the presence of proteins.
This is Biuret's test and the principle is simple as follows:
In the presence of alkaline medium (caustic soda or NaOH), the Cu2+ ions get reduced to Cu+ and binds to the egg proteins, thereby giving a violet color.
Therefore, the correct answer is option B.
Therefore EGG YOLK IS THE RIGHT ANSWER.
Hope it helps u ; )
When two drops of copper sulphate and ten drops of caustic soda or NaOH is added to egg, it turns violet. This indicates the presence of proteins.
This is Biuret's test and the principle is simple as follows:
In the presence of alkaline medium (caustic soda or NaOH), the Cu2+ ions get reduced to Cu+ and binds to the egg proteins, thereby giving a violet color.
Therefore, the correct answer is option B.
Therefore EGG YOLK IS THE RIGHT ANSWER.
Hope it helps u ; )
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