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NEET Sample Paper NEET Sample Test Paper-74

  • question_answer
    The effective atomic number of cobalt in \[[Co{{\left( N{{H}_{3}}{{)}_{5}}{{H}_{2}}O \right]}^{3+}}\] is

    A)  36                               

    B)  33                    

    C)  24                               

    D)  30

    Correct Answer: A

    Solution :

    \[\operatorname{EAN} = \left( atomic number - oxidation state + 2 \times  CN \right)\] \[=27-3+2\times 6\] \[=24+12=36\]


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