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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Atomic Molecular and Equivalent masses

  • question_answer
    Equivalent weight of crystalline oxalic acid is [MP PMT 1995]

    A)                 30          

    B)                 63

    C)                 53          

    D)                 45

    Correct Answer: B

    Solution :

               Equivalent weight \[=\frac{\text{Molecular weight}}{\text{Valency}}\]                                 Molecular weight of \[\begin{matrix}    COOH  \\    \overset{|}{\mathop{C}}\,OOH  \\ \end{matrix}\cdot 2{{H}_{2}}O=\frac{126}{2}=63\].


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