NEET Sample Paper NEET Sample Test Paper-52

  • question_answer
    \[Zn|Z{{n}^{2+}}\,({{c}_{1}})\parallel Z{{n}^{2+}}\,({{c}_{2}})|Z\] for this cell \[\Delta G\] is negative if-

    A) \[{{C}_{1}}={{C}_{2}}\]                    

    B) \[{{C}_{1}}>{{C}_{2}}\]

    C) \[{{C}_{2}}>{{C}_{1}}\]                    

    D) None of these

    Correct Answer: C

    Solution :

    \[\Delta G\] will negative when \[{{E}_{cell}}\] will positive for given cell \[Zn/Zn_{({{C}_{1}})}^{+2}\,\,\parallel \,\,Zn_{({{C}_{2}})}^{+2}/Zn\] \[E_{cell}^{0}\,\,=\,\,0\] \[E_{cell}^{{}}\,\,=\,\,0\,\,-\,\frac{0.0591}{2}\,\log \,\left( \frac{{{C}_{1}}}{{{C}_{2}}} \right)\] Now if \[{{C}_{2}}>{{C}_{1}}\] then \[{{E}_{cell}}\] will positive because log \[\left( x\,\,<\,\,1 \right)\] is negative


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