Question

Which is a disadvantage of using chemical indicators?

Answer 1

Answer:

The disadvantages of chemical indicators is that they must be selected for a narrow pH range. They cannot determine the exact value of pH of the solution.

Explanation:

Answer 2

Answer:

The disadvantages of pH indicators are as follows.

1. The sample solution must be colorless enough to clearly observe the changes in the color of the indicator.

2 An indicator is not functional above its pH range because the indicator does not change color at these pH values

3 If the substance or sample is contaminated, the color may be wrong.

4Acid-base indicators show just one or two color changes.

5Indicators measure pH at low accuracy, they only indicate sample acidity or alkalinity and not exact pH.

Explanation:

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