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The colour of phenolphthalein indicator in alkaline solution at the end-point of an acid-base titration…

The colour of phenolphthalein indicator in alkaline solution at the end-point of an acid-base titration is
  • A.
    colourless
  • B.
    orange
  • C.
    pink
  • D.
    yellow
Correct Answer: Option A
Explanation