229,783 views
36 votes
36 votes
A mixture of lemon juice, bromothymol blue indicator, and indigo carmine indicator is prepared . What is the colur of this mixture?

A.yellow
B.blue
C.colourless
D.green

User Locane
by
3.0k points

1 Answer

27 votes
27 votes
Bromothymol blue turns yellow in acidic solution, blue in basic solutions, and green in neutral solutions. As citric acid is an acid and will have a pH of less than 7, bromothymol blue will turn into yellow. Therefore, the correct answer is (A).
User Jrushing
by
3.9k points