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Which of the following is a common laboratory indicator for bases?

Chemistry
JAMB 2023

Which of the following is a common laboratory indicator for bases?

  • A. Methyl orange
  • B. Phenolphthalein
  • C. Bromothymol blue
  • D. Litmus
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Correct Answer: Option B
Explanation

Phenolphthalein is a common laboratory indicator used to detect the presence of bases in a solution. In its basic form (pH > 8.3), it turns pink or purple, indicating the presence of a base.

There is an explanation video available below.

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Explanation Video

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