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12th Class Biology Reproduction In Organisms

  • question_answer 22)
      Which of the following salts does not contain water of crystallization?                 (a) Blue vitriol                    (b) Baking soda                 (c) Washing soda              (d) Gypsum                

    Answer:

      (b) Chemical formula of baking soda is NaHC03 (sodium hydrogen carbonate). Chemical formulae of blue vitriol is, washing soda isand gypsum is So, baking powder does not contain water of crystallization.


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