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ICSE Class 10 Chemistry Question 6 of 24

Solved 2023 Question Paper ICSE Class 10 Chemistry — Question 15

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15
Question

Question 1(xv)

The indicator which changes to pink colour in an alkaline solution is:

  1. Blue Litmus
  2. Methyl Orange
  3. Red Litmus
  4. Phenolphthalein
Answer

Phenolphthalein

Reason — Colourless phenolphthalein changes to pink colour in an alkaline solution.