A. Phenolphthalein
B. Bromothymol blue
C. Litmus
D. Methyl orange
Answer: Methyl orange
A. Phenolphthalein
B. Bromothymol blue
C. Litmus
D. Methyl orange
Answer: Methyl orange
Additional Information: Methyl orange turns yellow in acidic solutions and red in neutral to basic solutions.
Subjects: Acids, Bases, and Salts, Chemistry