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

  • question_answer
        What is the molecular weight of

    Answer:

      Molecular weight of ? = 63.5 + 32 + 4 x 16 + 5 (2 + 16) = 63.5 + 32 + 64 + 90 = 249.5 u


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