IIT JEE Advanced 2010 Paper 1

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This section has 2 paragraphs. Based on the first paragraph 2 multiple choice questions and based on the second paragraph 2 multiple choice questions have to be answered. Each of these questions has 4 choices (A), (B), (C) and (D) out of which ONLY ONE is correct.
Paragraph for Questions 42 and 43:
The concentration of potassium ions inside a biological cell is at least twenty times higher than the outside. The resulting potential difference across the cell is important in several processes such as transmission of nerve impulses and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is
M(s) | M+ (aq.;0.05 molar) || M+ (aq.);1molar | M(s)
For the above electrolytic cell, the magnitude of the cell potential Ecell = 70 mV.
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