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10th Class Science Chemical Reactions and Equations Question Bank Chemical Reactions and Equation

  • question_answer
    In the balanced equation given below, 'a' and 'b' stand for:  \[aFe+b{{H}_{2}}O\to F{{e}_{2}}{{O}_{4}}+{{H}_{2}}\]

    A) \[a=3,\,\,b=4\]                                

    B) \[a=4,\,b=3\]                   

    C) \[a=2,\,b=5\]                   

    D) \[a=3,\,\,b=5\]

    Correct Answer: A

    Solution :

    The balanced chemical equation is \[3Fe+4{{H}_{2}}O\to F{{e}_{3}}{{O}_{4}}+4{{H}_{2}}.\] So, \[a=3,b=4\]


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