J & K CET Medical J & K - CET Medical Solved Paper-2008

  • question_answer
    Metallic silver may be obtained from\[AgCl\]by

    A)  heating it in the current of Ha

    B)  fusing it with sand

    C)  treating with carbon monoxide

    D)  fusing it with\[N{{a}_{2}}C{{O}_{3}}\]

    Correct Answer: D

    Solution :

                     On fusing\[AgCl\]with\[N{{a}_{2}}C{{O}_{3}},\]metallic silver is obtained. \[2AgCl+N{{a}_{2}}C{{O}_{3}}\xrightarrow[{}]{Fuse}\underset{\begin{smallmatrix}  metallic \\  silver \end{smallmatrix}}{\mathop{2Ag\downarrow }}\,+2NaCl\]                                                 \[+C{{O}_{2}}+\frac{1}{2}{{O}_{2}}\]


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