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JEE Main & Advanced Sample Paper JEE Main Sample Paper-7

  • question_answer
    The colour of \[H{{g}_{2}}C{{l}_{2}}\] changes from white to black when treated with \[N{{H}_{3}}\]. This is due to formation of complex.

    A)  \[Hg(N{{H}_{2}})Cl\]     

    B)  \[[Hg{{(N{{H}_{3}})}_{2}}]Cl\]

    C)  \[{{[Hg{{(N{{H}_{3}})}_{4}}]}^{+}}\]       

    D)  \[Hg(N{{H}_{3}})Cl\]

    Correct Answer: A

    Solution :

    \[H{{g}_{2}}C{{l}_{2}}+2N{{H}_{4}}OH\]          \[\xrightarrow{\,}\,H{{g}^{+}}+N{{H}_{4}}Cl+2{{H}_{2}}O\]


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