about the color of phenolphthalein when added to "any mono..." (likely referring to an acidic solution, such…

Question

about the color of phenolphthalein when added to "any mono..." (likely referring to an acidic solution, such as a monobasic acid).

ScanSolve AI Tutor · Accepted Answer

The question asks about the color of phenolphthalein when added to "any mono..." (likely referring to an acidic solution, such as a monobasic acid).

Identify the indicator.
The indicator mentioned is phenolphthalein.
Recall the color changes of phenolphthalein.
Phenolphthalein is an acid-base indicator that changes color based on the pH of the solution:
- In acidic solutions (pH below 8.2), phenolphthalein is colourless.
- In basic (alkaline) solutions (pH above 10), phenolphthalein is pink or magenta.
Determine the color in an acidic solution.
If phenolphthalein is added to an acid (like a monobasic acid), the solution will be acidic. In an acidic solution, phenolphthalein remains colourless.

The final answer is $\text{B}$

About the color of phenolphthalein when added to "any mono..." (likely referring to an acidic solution, such as a monobasic acid).