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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
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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
Prepare a list of objects around you that are electroplated.
In an electrolyte the current is due to the flow of ______.
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
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) |
|
______ |
You are provided with a magnetic compass, an empty matchbox, a battery of two cells and connecting wires. Using these objects, how will you make a tester for testing an electric circuit? Draw the necessary circuit diagram and explain.
The most common industrial application of chemical effects of electric current is ______.
______ is used in the extraction and purification of metals.
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 |
Assertion: Parts of cars and bicycles are made iron with chromium coating.
Reason: Chromium does not corrode and resist scratches.
State some advantages of electroplating.
