BHU PMT BHU PMT (Screening) Solved Paper-2011

  • question_answer
    Assertion  An electrochemical cell can be set up only if the redox reaction is spontaneous. Reason (R) A reaction is spontaneous if free energy change is negative.

    A)  Both assertion and reason are true and reason is the correct explanation of the assertion.

    B)  Both assertion and reason are true but reason is not the correct explanation of assertion.

    C)   Assertion is true, but reason is false.

    D)  Assertion is false but reason is true.

    Correct Answer: B

    Solution :

                     If redox reaction is spontaneous then\[\Delta G\]is negative and therefore,\[E_{cell}^{o}\]is positive. \[-\Delta {{G}^{o}}=nFE_{cell}^{o}\]


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