Question

question 2
why is water tested also when testing for carbohydrates?
it is the experimental group since water contains carbohydrates.
it is the control group since water doesnt contain carbohydrates.
you always test water when doing an experiment.
what chemical indicator is used to test for the presence of carbohydrates?
iodine
water
hydrogen peroxide

Explanation:

Water is tested as a control in carbohydrate - testing experiments. It does not contain carbohydrates and serves as a baseline to compare results. Iodine is used to test for the presence of starch, a type of carbohydrate. Starch reacts with iodine to form a blue - black complex.

Answer:

Question 2: Water is tested as a control to provide a baseline for comparison since it does not contain carbohydrates.
What chemical indicator is used to test for the presence of carbohydrates: Iodine.