Question

A base a. causes phenolphthalein indicator to change from colorless to pink. b. donates a proton in a proton transfer reaction. c. accepts electrons in an electron transfer reaction. d. produces hydrogen ions in solution. e. does none of the above.

Answer 1

Answer: a. causes phelophtalein indicator to change from colorless to pink

Step-by-step explanation:

Phenolphtalein is an indicator, which means it can visually change when given certain circumstances.

Phenolphtalein turns fuchsia when exposed to basic substances, especially above a pH of 8.2, due to ionization, which changes the structure of the indicator.