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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Critical Thinking

  • question_answer
    Irrespective of the source, pure sample of water always yields 88.89% mass of oxygen and 11.11% mass of hydrogen. This is explained by the law of                                      [Kerala CEE 2002]

    A)                 Conservation of mass          

    B)                 Constant composition

    C)                 Multiple proportions            

    D)                 Constant volume

    Correct Answer: B

    Solution :

                    \[{{H}_{2}}O\] contains H and O in a fixed ratio by mass. It illustrates the law of constant composition.


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