2. Questions Bank
  3. 9th Class
  4. Science
  5. Structure of the Atom

9th Class Science Structure of the Atom Question Bank Nature of Matter

  • question_answer
    A sample of pure water, irrespective of source, contains 88.89% oxygen and 11.11% hydrogen by mass. The data supports the

    A)  law of conservation of mass

    B)  law of constant composition  

    C)  law of multiple proportion

    D)  law of reciprocal proportion

    Correct Answer: B

    Solution :

    Not Available


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