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9th Class Science Atoms and Molecules Question Bank 9th CBSE Science Atoms and Molecules

  • question_answer
      Write down the formulae of (i) Sodium oxide           (ii) Aluminium chloride (iii) Sodium sulphide        (iv) Magnesium hydroxide (v) Copper nitrate          (vi) Calcium carbonate.      

    Answer:

                      (i)                               (ii)                 (iii)                              (iv) (v)                     (vi)


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