| 1 |
Which is used for industrial manufacture of NaCI? |
- A. Daniel cell
- B. Down's cell
- C. Nelson's cell
- D. None of these
|
| 2 |
In silver plating Anode is made of: |
- A. Gold
- B. Ag
- C. Neon
- D. Nil
|
| 3 |
The cathode of Nelson's cell is made up of |
|
| 4 |
During the formation of water from hydrogen and oxygen, which of the following does not occur?<br> |
- A. Hydrogen has oxidized<br>
- B. oxygen has reduced<br>
- C. oxygen gains electrons<br>
- D. hydrogen behaves as oxidizing agent<br>
|
| 5 |
____________ is prevented by Metallic coating. |
- A. NaCl
- B. Rust
- C. All
- D. None of these
|
| 6 |
Br2 + H2S __ 2HBr + S, which one is oxidizing agent: |
- A. H2S
- B. Br2
- C. S
- D. 2HBr
|
| 7 |
Which one of the following is not an electrolytic cell:<br> |
- A. Down cell<br>
- B. Galvanic cell <br>
- C. Nelson' cell <br>
- D. Both a and c<br>
|
| 8 |
Copper extracted from its ore is ____________ % pure. |
- A. 98%
- B. 99%
- C. 96%
- D. Nil
|
| 9 |
It is a strong electrolyte |
- A. H2O
- B. CH3COOH
- C. NaOH
- D. C6H6
|
| 10 |
Formation of water form hydrogen and oxygen is:<br> |
- A. Redox reaction<br>
- B. Acid-base reaction <br>
- C. Neutralization<br>
- D. Decomposition<br>
|
