Haryana PMT Haryana PMT Solved Paper-2002

  • question_answer
    To dissolve argentite ore which of the following is used: 

    A)  \[Na[Ag{{(CN)}_{2}}]\]

    B)  \[NaCN\]

    C)  \[NaCl\]        

    D)  \[NaCl\]

    Correct Answer: B

    Solution :

                    Argentite is\[A{{g}_{2}}S\]. \[A{{g}_{2}}S+4NaCN\xrightarrow{{}}2NaAg{{(CN)}_{2}}+NaCl\]\[AgCl+2NaCNNaAg{{(CN)}_{2}}+NaCl\]


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