Question

You are given 3 test tubes,each containing starch solution,invertase solution or amylase solution. Describe how you can use Benedict’s solution and protein test paper to identify the solution in each test tubes.State clearly the principles of your investigation and the procedures of the tests.

Answer 1

If the colour of red litmus does not change then it is acid. If the colour of red litmus changes to blue then it is base. If there is slight change in the colour of red litmus (such as purple) then it is distilled water.