WAEC Biology 2014 Objective — Question 24
Question 24 of 50 from the West African Examinations Council (WAEC) Biology 2014 Objective paper, with the correct answer and a full explanation.
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In a Biuret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive result?
- A. Mercurous nitrate
- B. Copper sulphateCorrect
- C. Silver nitrate
- D. (see explanation)
Explanation
The reagents needed for the Biuret test (a test for protein) are sodium hydroxide and copper sulphate.
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