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
    10.0 g of\[\text{CaC}{{\text{O}}_{\text{3}}}\]  on heating gave \[\text{4}\text{.4 g}\]of \[\text{C}{{\text{O}}_{\text{2}}}\]and 5.6 g of\[CaO\]. The observation is in agreement with the

    A)  law of constant composition

    B)  law of multiple proportion

    C)  law of reciprocal proportion

    D)  law of conservation of mass  

    Correct Answer: D

    Solution :

    Not Available


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