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

  • question_answer
    How much water should be added to 200 c.c of semi normal solution of \[NaOH\]to make it exactly deci normal [AFMC 1983]

    A)                 200 cc

    B)                 400 cc

    C)                 800 cc    

    D)                 600 cc

    Correct Answer: C

    Solution :

               \[{{N}_{1}}{{V}_{1}}={{N}_{2}}{{V}_{2}}\]; \[\frac{1}{2}\times 200=\frac{1}{10}\times {{V}_{2}}\]; \[{{V}_{2}}=1000ml\]                                 Volume of water added \[=1000-200=800ml\].


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