JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    Which of the following free radicals is responsible for causing break down of ozone into oxygen due to use of\[CFCs\]?

    A) \[\frac{-1}{e}\]                                 

    B) \[\frac{1}{e}\]    

    C) \[lx+my=1\]                      

    D) \[{{x}^{2}}+{{y}^{2}}={{a}^{2}}\]

    Correct Answer: B

    Solution :

    \[E_{cell}^{o}=\frac{0.059}{2}\log {{k}_{c}}=11V\] \[\log {{k}_{c}}=\frac{1.1v\times 2}{0.059v}=37.288\] \[{{k}_{c}}=2\times {{10}^{37}}at\,298k\] The chlorine radicals are continuously regenerated and cause the breakdown of ozone.


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