BVP Medical BVP Medical Solved Paper-2001

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

    A)  \[Na\,[Ag{{(CN)}_{2}}]\]

    B)  \[NaCN\]

    C)  \[NaCl\]

    D)  \[HCl\]

    Correct Answer: B

    Solution :

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


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