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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Self Evaluation Test - Some Basic Concepts of Chemistry

  • question_answer
    When burnt in air, 14.0 g mixture of carbon and sulphur gives a mixture of\[~C{{O}_{2}}\] and \[S{{O}_{2}}\] in the volume ratio of 2:1, volume being measured at the same conditions of temperature and pressure moles of carbon in the mixture is

    A) 0.75                 

    B) 0.5   

    C) 0.40                 

    D) 0.25

    Correct Answer: B

    Solution :

    [b] Let weight of C be xg, then S will be \[\left( 14-x \right)g\] \[\frac{x/12}{\left( 14-x \right)/32}=\frac{2}{1}\] \[\therefore x=6g\]; Moles of \[C=\frac{6}{12}=0.5\]


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