/Mn2+ = 1.51 V, Eo Cr3+/Cr = -0.74 V
EMF of Daniell cell was found using different concentrations of Zn2+ion. A graph was then plotted between Ecell and log\(\frac{[Zn^{2+}]}{[Cu^{2+}]}\). The plot was found to be linear with an intercept of \(E_{cell}\) axis equal to 1.10 V. Ecell for Zn/Zn2+ (0.1 M)||Cu2+(0.01 M)| Cu will be:
1. 1.10 V
2. 1.0705 V
3. 0.93 V
4. 0.078 V
2. 1.0705 V
3. 0.93 V
4. 0.078 V
Subtopic: Electrolytic & Electrochemical Cell | Nernst Equation |
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Which of the following process is not responsible for the presence of electric charge on the sol particles?
1. Electron capture by sol particles
2. Adsorption of ionic species from solution
3. Formation of Helmholtz electrical double layer
4. Absorption of ionic species from solution
52%
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In the metallurgy of aluminium
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Which one of the following reactions of xenon compounds are not feasible?
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The statement among the following that is not correct about the order of a reaction is:
| 1. | The order of a reaction can be a fractional number. |
| 2. | The order of a reaction is an experimentally determined quantity. |
| 3. | The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants in the balanced chemical equation for a reaction. |
| 4. | The order of a reaction is the sum of the powers of molar concentrations of the reactants in the rate law expression. |
Subtopic: Definition, Rate Constant, Rate Law |
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