Advertisements
Advertisements
प्रश्न
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ______ terminal of the battery.
Advertisements
उत्तर
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the negative terminal of the battery.
Explanation:
When an electric current passes through a copper sulphate solution, the solution decomposes into positively charged copper ions and negatively charged sulphate ions. These positively charged copper ions are attracted to the plate connected to the negative terminal of a battery.
APPEARS IN
संबंधित प्रश्न
Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B as shown in the following figure.
![]() |
![]() |
| Boojho's Experiment | Paheli's Experiment |
| (A) | (B) |
They found that the bulb in the setup A glows more brightly as compared to that of the setup B. You would conclude that
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory
Which of the following metals is used in electroplating to make objects appear shining?
Paheli set up an experiment using liquid A in the beaker as shown in the following figure. She observed that the bulb glows. Then she replaced the liquid A by another liquid B. This time the bulb did not glow. Boojho suggested replacing the bulb by an LED. They observed that the LED glows. Explain.

Why is tin electroplated on iron to make cans used for storing food?
Observe the following circuits carefully. In which circuit will the bulb glow? Write Yes or No in the blank space provided along each of the circuit given in the figure.
|
(a) |
|
______ |
|
(b) |
|
______ |
|
(c) |
|
______ |
|
(d) |
|
______ |
Explain the following:
Short circuit.
The terminal which is connected to a positive terminal of a battery is called ______.
Match the following
| 1. | Anode | a. | Conducting solution |
| 2. | Cathode | b. | Positive terminal |
| 3. | Ions | c. | Negative terminal |
| 4. | Electrolyte | d. | Positively or negatively charged |
What are anodes and cathodes?






