| 1 |
In Daniel cell, if salt bridge is removed between the two half cells, the voltage. |
- A. Drops to zero
- B. Does not changes
- C. Increases gradually
- D. Increases rapidly
|
| 2 |
|
- A. Fe is reduced
- B. Fe is oxidized
- C. CI<sub>2</sub>is oxidized
- D. None of these
|
| 3 |
According to classical concept, oxidation involves |
- A. Addition of oxygen
- B. Addition of electron
- C. Removal of hydrogen
- D. All are correct
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| 4 |
The difference of potential of two electrodes when concentration of solution is 1 M each at 25<sup> o</sup>C and 1 atmosphere is called. |
- A. Electrode potential
- B. Standard cell potential
- C. Cell reaction
- D. Cell voltage
|
| 5 |
Standard hydrogen electrode has an arbitrarily fixed potential |
- A. 0.00 volts
- B. 1.00 volt
- C. 0.10 volt
- D. None of these
|
| 6 |
If the salt bridge is not used between two half cells, then the voltage |
- A. Decreases rapidly
- B. Decreases slowly
- C. Does not change
- D. Drops to zero
|
| 7 |
Oxidation number of phosphorus in the compound is. |
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| 8 |
Which of the following statements is correct about galvanic cell |
- A. Anode is negative charged
- B. Reduction occurs at anode
- C. Cathode is positively charged
- D. Reduction occurs at cathode
|
| 9 |
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
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| 10 |
In NICAD dry cell, the cathode and anode is made up of. |
- A. Ca and Ag
- B. Ni and CdO2
- C. NiO2 and Cd
- D. Ag and Ag2O
|