JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry Question Bank Atomic Molecular and Equivalent masses

  • question_answer The oxide of a metal has 32% oxygen. Its equivalent weight would be                                         [MP PMT 1985]

    A)                 34          

    B)                 32

    C)                 17          

    D)                 8

    Correct Answer: C

    Solution :

               Let weight of metal oxide = 100gm                    Weight of oxygen             = 32gm                    \[\therefore \]           weight of metal \[=100-32=68gm\]                    Equivalent weight of oxide \[=\frac{\text{wt}\text{. of metal}}{\text{wt}\text{. of oxygen}}\times 8\]                                    \[=\frac{68}{32}\times 8=17\].

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