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      Question

      A substance X turns the colour of red litmus blue, and

      it will change methyl orange-
      A Yellow Correct Answer Incorrect Answer
      B Colourless Correct Answer Incorrect Answer
      C Red Correct Answer Incorrect Answer
      D Pink Correct Answer Incorrect Answer

      Solution

      A Base is a substance that is bitter in taste and turns red litmus paper into Blue. β€’ Indicator properties of bases: Indicator-Colour changes Red Litmus paper -Turns Blue Methyl orange-From orange to yellow Phenolphthalein-from colourless to pink

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