Advertisements
Advertisements
प्रश्न
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory
पर्याय
in the nearby river
in the nearby pond
in the nearby cornfield
according to the disposal guidelines of the local authority
Advertisements
उत्तर
according to the disposal guidelines of the local authority
Explanation:
In electroplating factory, the disposal of the used conducting solution is a major concern because it is a polluting waste, therefore it should be disposed off according to the disposal guidelines of the local authority.
APPEARS IN
संबंधित प्रश्न
In an electrolyte the current is due to the flow of ______.
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
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates
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?
A chemical reaction happens when electricity passes through various conducting liquids.
Explain the following:
Short circuit.
The most common industrial application of chemical effects of electric current is ______.
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 |
Name the process which shows the chemical effect of electric current?
