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CMC Medical CMC-Medical Ludhiana Solved Paper-2014

  • question_answer
    A 400 mg iron capsule contains 100 mg of ferrous fumarate, \[{{(CHCOO)}_{2}}Fe\,.\] The percentage of iron present in it is approximately

    A)  33%                      

    B)  25%   

    C)  14%                      

    D)  8%

    Correct Answer: D

    Solution :

                    Molecular mass of \[{{(CHCOO)}_{2}}Fe=170\] \[\therefore \]In 100 g \[{{(CHCOO)}_{2}}Fe,\]iron present \[=\frac{56}{170}\times 100\,mg=32.9\,mg\] Since, this quantity of Fe is present in 400 mg of capsule, \[\therefore \] % of Fe in capsule\[=\frac{32.9}{400}\times 100=8.2\,%\]


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