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प्रश्न
Why is tin electroplated on iron to make cans used for storing food?
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उत्तर
Electroplating of tin is done on the iron to make cans used for storing food because tin is less reactive than iron. Coating of tin prevents food from coming in contact with iron and thus, prevents it from getting spoiled.
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संबंधित प्रश्न
The process of depositing a layer of any desired metal on another material by means of electricity is called ______.
Name three liquids, which when tested in the manner shown in Figure, may cause the magnetic needle to deflect.
Prepare a list of objects around you that are electroplated.
The process that you saw in the image is used for the purification of copper. A thin plate of pure copper and a thick rod of impure copper are used as electrodes. Copper from impure rod is sought to be transferred to the thin copper plate. Which electrode should be attached to the positive terminal of the battery and why?
Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B as shown in the following figure.
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| 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
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.
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(a) |
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______ |
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(b) |
|
______ |
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(c) |
|
______ |
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(d) |
|
______ |
Liquids that conduct electricity are the solutions of ______.
______ is used in the extraction and purification of metals.
State some advantages of electroplating.
What are anodes and cathodes?
