| 1 |
Nelson's cells used to prepare caustic soda along with gases. Which of the following gas is produced at cathode?<br> |
- A. CI<sub>2</sub>
- B. H<sub>2</sub>
- C. O<sub>3</sub>
- D. O<sub>2</sub>
|
| 2 |
In peroxides, the oxidation no. of O is |
|
| 3 |
In silver plating Anode is made of: |
- A. Gold
- B. Ag
- C. Neon
- D. Nil
|
| 4 |
____________ are good conductors of electricity. |
- A. Covalent compound
- B. Metals
- C. Both
- D. None of these
|
| 5 |
____________ do not conduct electricity. |
- A. Electrolyte
- B. Non-electrolyte
- C. Both
- D. Nil
|
| 6 |
Electrolyte is ____________ solid form. |
- A. in
- B. Sometimes in
- C. Never in
- D. Always in
|
| 7 |
Br2 + H2S __ 2HBr + S, which one is oxidizing agent: |
- A. H2S
- B. Br2
- C. S
- D. 2HBr
|
| 8 |
____________ cell is made of two half of cells. |
- A. Zinc cell
- B. Galvanic
- C. Both
- D. All
|
| 9 |
The metallic plates through which electrons enters and leaves electrolytes: |
- A. Wires
- B. Electrodes
- C. Both
- D. Nil
|
| 10 |
NaOH is prepared by ____________ of NaCL (aqueous). |
- A. Electrolysis
- B. Decomposition
- C. A & B
- D. Nil
|
