Wrong question in CBSE Class 12 Chemistry Set 3, Board Exam Paper
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Wrong question in CBSE Class 12 Chemistry Set 3, Board Exam Paper

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    Wrong question in CBSE Class 12 Chemistry Set 3, Board Exam Paper

    DISCREPANCY IN DATA IN CBSE 12TH CLASS CHEMISTRY 2013 MARCH EXAM
    Qn no.24 OF SET CODE NO 56/3 is:
    Calculate the emf of following cell at 25 deg C:
    Ag(s)| Ag+ ( 10-3 M) || Cu2+ ( 10-1 M)|Cu (s)
    Given E0 Cell = +0.46 V and log 10n = n.
    For the cell representation given in question E0 Cell cannot have +ve value as the standard electrode potential (as per electrochemical series) of cathode is less than that of anode . (Actually cell should have been represented with Cu as anode and Ag as cathode in the question paper). Thus this question is wrong.How CBSE will evaluate the answer sheets?How to bring this to the attention of CBSE panel?

    Ilango

  2. #2
    Kannan's Avatar
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    Is there any hope for getting mark for the question (24th of set III ) that was wrong......
    We too identified it as wrong, but tried to do it..... will they give mark for those who attended only or for all students......

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