JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2012

  • question_answer
    \[N{{a}_{2}}S+N{{a}_{2}}[Fe{{(CN)}_{5}}NO]\xrightarrow[{}]{{}}\]purple colour. It is due to

    A)  \[N{{a}_{4}}[Fe{{(CN)}_{3}}NOS]\]

    B) \[N{{a}_{3}}[Fe{{(CN)}_{5}}NOS]\]

    C)  \[N{{a}_{4}}[Fe{{(CN)}_{5}}NO]\]

    D)  \[N{{a}_{4}}[Fe{{(CN)}_{5}}NOS]\]

    Correct Answer: D

    Solution :

                    \[N{{a}_{2}}S+\underset{\begin{smallmatrix}  sodium\text{ }nitroprusside \\  \,\,\,\,\,\,\,\,solution \end{smallmatrix}}{\mathop{N{{a}_{2}}[Fe{{(CN)}_{5}}NO]}}\,\] \[\xrightarrow[{}]{{}}\underset{\begin{smallmatrix}  sodium\text{ }thionitroprusside \\  \,\,\,\,\,\,\,\,\,\,\,\,(purple\text{ }colour) \end{smallmatrix}}{\mathop{N{{a}_{4}}[Fe{{(CN)}_{5}}COS]}}\,\]


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