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ctets15p2 q79

79You have two test tubes A and B. Test tube A contains paste of turmeric whereas test tube B contains aqueous solution of phenolphthalein. On adding a few drops of dilute hydrochloric acid to these test tubes the contents of
  • Option : B
  • Explanation : Turmeric is a natural indicator for acid and base which turns red on adding dil. HCI to it. On adding dil. HCI to phenolphthalein it will be colourless because phenolphthalein is an indicator which will be colourless in acids and pink in bases.
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