Question

Which of the following is an example of qualitative observation?

A.) Joseph is observing the color difference in the reaction mixture of each of the test samples to see what types of proteins are present in them.
B.) Joseph is measuring the color of the reaction mixture colorimetrically to see the concentration of proteins in the sample.
C.) Joseph is observing the color of the reaction mixture to see whether proteins are present in the given solution.

Answer 1

C.) Joseph is observing the color of the reaction mixture to see whether proteins are present in the given solution.

Step-by-step explanation:

PLATO

Answer 2

"Joseph is observing the color of the reaction mixture to see whether proteins are present in the given solution" is the one among the following choices given in the question that is an example of qualitative observation. The correct option among all the options that are given in the question is the third option or option "C".