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J & K CET Medical J & K - CET Medical Solved Paper-2002

  • question_answer
    How much\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}-5{{H}_{2}}O\]is required for making 100 mL of its 0.5 N solution?

    A)  12.4 g                                  

    B)  6.2.g

    C)  124 g                                    

    D)  62 g

    Correct Answer: A

    Solution :

                    \[W=\frac{NVE}{1000}=\frac{0.5\times 100\times 248}{100}=12.4\,g\]


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