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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    In Me Arthur Forest Method, silver is extracted from the solution of b\[Na[Ag{{(CN)}_{2}}]\] by the use of:

    A) \[Fe\]                                   

    B)        \[Mg\]

    C)        \[Cu\]                                  

    D)        \[Zn\]

    Correct Answer: D

    Solution :

    In Mc Arthur Forest method silver is extracted from the solution of sodium agenticyanide by using zinc. \[2Na\,[Ag{{(CN)}_{2}}]+Zn\to N{{a}_{2}}[Zn{{(CN)}_{4}}]+2Ag\downarrow \]


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