Zn(s) + Ag2O(s) + H2O(l) \(\rightleftharpoons\) 2Ag(s) + Zn2+(aq) + 2OH–(aq) |
If half-cell potentials are:
Zn2+(aq) + 2e–→ Zn(s) | Eo = – 0.76 V |
Ag2O(s) + H2O(l) + 2e– → 2Ag(s) + 2OH–(aq) | Eo = 0.34 V |
The cell potential will be:
1. 0.42 V
2. 0.84 V
3. 1.34 V
4. 1.10 V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLimiting molar conductivity of NH4OH (i.e., is equal to -
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. Y > X > Z
2. Z > X > Y
3. X > Y > Z
4. Y > Z > X
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the for a given reaction has a negative value, then which of the following gives the correct relationship for the values of ?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCu2+(aq) + e- → Cu+(aq) | 0.15 V |
Cu+(aq) + e- → Cu(s) | 0.50 V |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStandard electrode potential for Sn4+/Sn2+ couple is +0.15 V and that for Cr3+/Cr couple is -0.74. These two couples in their standard state are connected to make a cell. The cell potential will be:
1. +0.89 V
2. +0.18 V
3. +1.83 V
4. +1.199 V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn producing chlorine by electrolysis, 100 kW power at 125 V is being consumed. How much chlorine per minute is liberated (ECE of chlorine is 0.367 X 10-6 kgC-1)
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor the reduction of silver ions with copper metal, the standard cell potential was found to be +0.46 V at 25 °C. The value of standard Gibbs energy, ΔGo will be :
(F = 96500 C mol-1)
1. -89.0 kJ
2. -89.0 J
3. -44.5 kJ
4. -98.0 kJ
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn increase in equivalent conductance of a strong electrolyte with dilution is mainly due to
1. increase in ionic mobility of ions
2. 100% ionization of electrolyte at normal dilution
3. increase in both, i.e, number of ions and ionic mobility of ions
4. increase in the number of ions
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAl2O3 is reduced by electrolysis at low potentials and high currents. If 4.0 x 104 A of current is passed through molten Al2O3 for 6 hours, what mass of aluminium is produced ?
(Assume 100 % current efficiency, atomic mass of Al = 27 g mol-1)
1. 9.0 x 103 g
2. 8.1 X 104 g
3. 2.4 x 105 g
4. 1.3 X 104 g
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology