List-I (Redox Conversion) |
List-II (Number of Faraday required) |
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A. | 1 mol of H2O to O2 | I. | 3F |
B. | 1 mol of MnO−4 to Mn2+ | II. | 2F |
C. | 1.5 mol of Ca from molten CaCl2 | III. | 1F |
D. | 1 mol of FeO to Fe2O3 | IV. | 5F |
Statement I: | 2 F electricity is required for the oxidation of 1 mole H2O to O2. |
Statement II: | To get 40.0 g of Aluminium from molten Al2O3 required electricity is 4.44 F. |
1. | Rusting of an iron object |
2. | Production of hydrogen by electrolysis of water |
3. | Tarnishing of silver |
4. | Development of green coating on copper and bronze ornaments |
1. | −61.75 kJ mol−1 | 2. | +5.006 kJ mol−1 |
3. | −5.006 kJ mol−1 | 4. | +61.75 kJ mol−1 |
Assertion (A): | ΔrG=−nFEcell , value ΔrG depends on n. | In equation
Reason (R): | Ecell is an intensive property and ΔrG is an extensive property. |
1. | (A) is False but (R) is True. |
2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
3. | Both (A) and (R) are True and (R) is not the correct explanation of (A). |
4. | (A) is True but (R) is False. |
1. | 3.34 cm–1 | 2. | 1.34 cm–1 |
3. | 3.28 cm–1 | 4. | 1.26 cm–1 |
A: | This equation applies to both strong and weak electrolytes. |
B: | The value of the constant A depends upon the nature of the solvent. |
C: | The value of constant A is the same for both BaCl2 and MgSO4 |
D: | The value of constant A is the same for both BaCl2 and Mg(OH)2 |
1. | (A) and (B) only | 2. | (A), (B), and (C) only |
3. | (B) and (C) only | 4. | (B) and (D) only |