| 1 |
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- A. Fe is reduced
- B. Fe is oxidized
- C. CI<sub>2</sub>is oxidized
- D. None of these
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| 2 |
Which is not chargeable cell |
- A. Lead accumulator
- B. NiCAD cell
- C. Fuel cell
- D. Alkaline battery
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| 3 |
Fuel cells are the means by which chemical energy may be converted into |
- A. Heat energy
- B. Magnetic energy
- C. Sound energy
- D. Electric energy
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| 4 |
If the salt bridge is not used between two half cells, then the voltage. |
- A. Decrease rapidly
- B. Decrease slowly
- C. Drops to zero
- D. Does not change
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| 5 |
In lead accumulator cathode is made up of. |
- A. Pb
- B. Pb coated with PbO2
- C. PbSO4
- D. Mixture of Pb and PbO2
|
| 6 |
Which is not use of electrochemical series. |
- A. Feasibility of reaction
- B. Measurement of EMF of cell
- C. Comparison of reactivity with water or acids
- D. Determination of atomic and ionic radii
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| 7 |
If strip of Cu metal is placed in the solution of FeSO4 |
- A. Cu will be precipitated out
- B. Fe is precipitated out
- C. Cu and Fe both dissolves
- D. No reaction takes place
|
| 8 |
Electrochemical series is the arrangement of the electrodes in |
- A. Increasing order of reduction potentials
- B. Decreasing order of reduction potentials
- C. Increasing order of oxidation reduction potential
- D. There is no fixed arrangement
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| 9 |
Electrolysis is a process in which a chemical reaction takes place at the expense of |
- A. Chemical energy
- B. Electrical energy
- C. Heat energy
- D. None of these
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| 10 |
If a strip of Cu metal is placed in a solution of FeSO<sub>4</sub> |
- A. Cu will be precipitated out
- B. Fe is precipitated out
- C. Cu and Fe both dissolve
- D. No reaction takes place
|