Final answer:
In today's experiment, the chemical species c. C₁₂H₇O₂NCl₂(2, 6-dichloroindophenol) acts as the indicator.
Step-by-step explanation:
In today's experiment, the chemical species c. C₁₂H₇O₂NCl₂(2, 6-dichloroindophenol) acts as the indicator. An indicator is a substance that undergoes a measurable change in color or other physical property when a change in conditions occurs. In this case, the 2, 6-dichloroindophenol changes color depending on the pH level of the solution being tested.
The information provided doesn't explicitly specify the details of the experiment or the context in which the indicator is being used. However, based on the options given, the chemical species that commonly acts as an indicator in experiments is:
c.
�
12
�
7
�
2
�
�
�
2
C
12
H
7
O
2
NCl
2
(2,6-dichloroindophenol)
This compound is often used as an indicator in redox titrations. Keep in mind that the choice of indicator depends on the specific experiment, the type of reaction being studied, and the pH range in which the indicator exhibits a color change. If you have additional details about the experiment, it may help provide a more accurate response.