Which of the following indicators is red in an acidic solution and yellow in a basic solution?

Question

Quizplus · Accepted Answer

Methyl red is red in acidic solutions (pH < 4.4) and yellow in basic solutions (pH > 6.2), while bromthymol blue is yellow in acidic solutions (pH < 6.0) and blue in basic solutions (pH > 7.6), and phenolphthalein is colorless in acidic solutions (pH < 8.2) and pink in basic solutions (pH > 10.0). Therefore, the only indicator that fits the description is methyl red.

Which of the Following Indicators Is Red in an Acidic