NEET Sample Paper NEET Sample Test Paper-78

  • question_answer
    A certain current liberates 0.500 g of \[{{H}_{2}}\] in 2.00 hr. How many gram of oxygen can be liberated by the same current in the same time?

    A)  0.500 g            

    B)  8.00 g               

    C)  4.00 g             

    D)  16.00 g

    Correct Answer: C

    Solution :

    According to Faraday?s I law,\[\omega =Z\] it Given, the value of it is same for \[{{\operatorname{H}}_{2}} and {{O}_{2}}\]. Then, \[\frac{{{\omega }_{{{H}_{2}}}}}{{{\omega }_{{{O}_{2}}}}}=\frac{{{Z}_{{{H}_{2}}}}}{{{Z}_{{{O}_{2}}}}}\] \[\frac{{{\omega }_{{{H}_{2}}}}}{{{\omega }_{{{O}_{2}}}}}=\frac{{{E}_{{{H}_{2}}}}}{{{E}_{{{O}_{2}}}}}\] \[\frac{0.500}{{{\omega }_{{{O}_{2}}}}}=\frac{2}{16}\] \[{{\omega }_{{{O}_{2}}}}=\frac{16\times 0.5}{2}\] \[{{\omega }_{{{O}_{2}}}}=4.00\,\,g\]


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