Multiple choice

How do you test for Protein

  1. Copper Sulphate, Sodium Hydroxide, (Blue to Purple)

  2. Benedict's Solution

  3. Iodine (Yellow to black)

  4. Brown Paper Test

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Biuret test is used to detect the presence of proteins. It involves adding copper sulfate and sodium hydroxide to the sample, which causes a color change from blue to purple if proteins are present. Other options like Benedict's solution and iodine are used to test for reducing sugars and starch, respectively.