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JEE Main & Advanced Sample Paper JEE Main Sample Paper-23

  • question_answer
    How many gm of silver be displaced from a solution of \[AgN{{O}_{3}}\] by 4 gm of magnesium?

    A)  18 gm                         

    B)  4 gm

    C)  36 gm                         

    D)  16 gm

    Correct Answer: C

    Solution :

    \[\frac{{{W}_{1}}}{{{E}_{1}}}\,=\frac{{{W}_{2}}}{{{E}_{2}}};\,\frac{4}{12}\,=\frac{{{W}_{Ag}}}{108};\,\,{{W}_{Ag}}\,=36\]


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