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EAMCET Medical EAMCET Medical Solved Paper-2007

  • question_answer
    When \[\text{AgN}{{\text{O}}_{\text{3}}}\]solution is added in excess to 1 M solution of \[\text{CoC}{{\text{l}}_{3}}.x\,\text{N}{{\text{H}}_{\text{3}}}\]one mole of \[\text{AgCl}\] is formed. What is the value of\[x\]?

    A)  1                                            

    B)  2

    C)  3                                            

    D)  4

    Correct Answer: D

    Solution :

                     When \[\text{AgN}{{\text{O}}_{\text{3}}}\]is added to \[CoC{{l}_{3}}.xN{{H}_{3}}\]one mole of AgCl is formed hence, the value of \[x\] is 4. \[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]Cl\rightleftharpoons {{[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]}^{+}}\] \[+\,\underset{\begin{smallmatrix}  \text{can}\,\text{be} \\  \text{precipitated} \end{smallmatrix}}{\mathop{C{{l}^{-}}}}\,\]


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