44. Which one of the following will not give a violet colour with alkaline copper
sulphate solution ?
(a) white of an egg (b) yellow of an egg
(c) milk (d) cheese
Answers
Answered by
2
Answer:
(b) yellow of an egg this is the answer
Answered by
0
Answer:
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.
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