| 1 |
Electrolysis is used for |
- A. Electroplating
- B. Refining of copper
- C. Manufacture of caustic soda
- D. All of the above
|
| 2 |
The cell in which a non spontaneous redox reaction takes place as a result of electricity is known as. |
- A. Voltaic cell
- B. Denial cell
- C. dry Cell
- D. Electrolytic cell
|
| 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
|
| 4 |
The reduction potential of Zn is. |
- A. +0.76 V
- B. -0.34 B
- C. +0.34 V
- D. -0.76 V
|
| 5 |
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
|
| 6 |
In silver oxide battery, anode is made of. |
- A. Zinc
- B. Copper
- C. Lead
- D. Graphite
|
| 7 |
The gain of electron is known as. |
- A. Oxidation
- B. Reduction
- C. Dehydration
- D. Dehydrogenation
|
| 8 |
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
|
| 9 |
The cathodic reaction in the electrolysis of dil H2SO4, with pt electrode sis. |
- A. Reduction
- B. Oxidation
- C. Both oxidation and reduction
- D. Neither oxidation nor reduction
|
| 10 |
A single lead cell provides volts |
|