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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
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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 Maresa
by
7.9k points

1 Answer

1 vote
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 Garth Mason
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