Question

Are both of the plant extracts suitable to be used as a pH indicator? Give a reason for your answer.

A. Yes, because both extracts change color at different pH levels, making them effective indicators.
B. No, because one extract does not show a noticeable color change at any pH level, rendering it unsuitable.
C. Yes, because neither extract changes color, providing a stable reference for pH measurement.
D. No, because both extracts change color unpredictably, making them unreliable for pH indication.

Answer 1

The suitability of the plant extracts as pH indicators depends on their ability to change color at different pH levels. A good indicator should have a color change that is easily detected and rapid.

Step-by-step explanation:

The suitability of the plant extracts as pH indicators depends on their ability to change color at different pH levels. A good indicator should have a color change that is easily detected and rapid. Based on the information provided, we cannot determine whether both extracts are suitable as pH indicators. It is important to note that indicators do not change color abruptly at a particular pH value, but undergo a pH titration over a range of about two pH units. Therefore, without specific information about the color changes of the plant extracts at different pH levels, we cannot determine their suitability as pH indicators.