JEE Main & Advanced Sample Paper JEE Main Sample Paper-28

  • question_answer
    The correct sequence of the stability of following complexes is

    A)  \[{{[Cu{{(N{{H}_{3}})}_{6}}]}^{+2}}<{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+2}}\]\[<{{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\]

    B)  \[{{[Cu{{(N{{H}_{3}})}_{6}}]}^{+2}}<{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+2}}\]\[={{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\]

    C)  \[{{[Cu{{(N{{H}_{3}})}_{6}}]}^{+2}}>{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+2}}\]\[{{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\]

    D)  \[{{[Cu{{(N{{H}_{3}})}_{2}}]}^{+2}}>{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+}}\]\[={{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\]

    Correct Answer: A

    Solution :

    As chelation increases, stability increases.


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