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.Management Sciences
Category: Electrochemistry
Electrode potential of Zn is__________________?
0
A. oxidation
B. reduction
C. oxidation-reduction
D. depends on the nature of the coupled electrode
Zn(s)/Zn+2(aq) 1M | | Cu+2(aq) 1M/Cu(s) is representation of reaction in______________?
A. Daniel cell
B. Downs cell
C. Voltaic cell
D. Nelsons cell
Which of the following cell is not rechargeable ?
A. Lead storage battery
B. Silver oxide cell
C. Fuel cell
D. Ni-Cd cell
Apparent charge on atom in molecule is___________________?
A. valency
B. coordination number
C. oxidation number
D. charge number
In an electrolytic cell current flows ?
A. From cathode to anode in outer circuit
B. From anode to cathode outside the cell
C. From cathode to anode inside the cell
D. both B & C
Capacity of one lead accumulator cell is___________________?
A. 1.5 volts
B. 2 volts
C. 3 volts
D. 1 volts
Voltaic cell can be recharged by______________?
A. by addition of fresh solution
B. by replacing external circuit with external source of electricity
C. by removal of solution
D. by heating it
Density of H2SO4 in lead accumulator is__________________?
A. 1.25g/cm3
B. 1.3g/cm3
C. 1.20g/cm3
D. 1.15g/cm3
In electrolytic solution conductance of electricity is due to _____________________?
A. free electrons
B. ions
C. metals
D. electrodes
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