Question

11 Which indicators test for similar conditions? A) Iodine + pH paper B) Biuret reagent + Benedict's solution C) pH paper + Phenol red D) Phenol red + Sudan IV

Answer 1

Answer:

The correct answer is - C) pH paper + Phenol red.

Explanation:

Iodine is a reagent and indicator that is used to test confirm the presence of the starch in the sample by producing its characteristic blue-black color.

pH paper is an indicator that helps in telling about the pH level of a specific sample or solution by changing its color.

Biuret reagent is used to test for the presence of protein as it identifies peptide bonds in a solution.

Benedict's solution is an indicator that is used to confirm the presence of simple sugar in the solution or sample.

Phenol red solution is used as a pH scale to identifies the pH value of a sample or solution.

Sudan Iv is used to find the lipids and fats in the sample or solution.

Thus, the correct answer is - C) pH paper + Phenol red test for similar conditions.