Everyday Science MCQs

5120 MCQs  (Page 305 of 512)

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Stronger the oxidizing agent greater is the________________?
A. Oxidation potential
B. Reduction potential
C. Redox potential
D. Emf of cell
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Which of the following cell is not rechargeable ?
A. Lead storage battery
B. Silver oxide cell
C. Fuel cell
D. Ni-cd cell
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Which of the following is true in the case of Zn-Cu cell ?
A. The flow of electrons takes place from copper to zinc
B. E0red of copper electrode is less than that of zinc electrode
C. Zinc acts as an anode and copper as cathode
D. All are correct
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Greater value of standard reduction potential smaller will be tendency______________?
A. To form positive ions
B. To form negative ions
C. Gain electrons
D. All are possible
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Lead accumulators are_______________?
A. Secondary cell
B. Primary cell
C. Voltaic cell
D. Both a & c
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Capacity of one lead accumulator cell is___________________?
A. 1.5 volts
B. 2 volts
C. 3 volts
D. 1 volts
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The strength of solution of an element whose electrode potential is to be measured is________________?
A. 2m
B. 1n
C. 1m
D. 1m
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In Galvanic cell electrons flow from anode to cathode through__________________?
A. External electric circuit
B. Salt bridge
C. Movement of ions
D. All of the above
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For the measurement of standard electrode potential Zn is dipped in________________?
A. 1 m zno solution
B. 1 m znso4 solution
C. 1.5 m znso4 solution
D. 0.1 m znso4 solution
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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
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
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