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प्रश्न
Prepare a list of objects around you that are electroplated.
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उत्तर
Examples of electroplated objects are as follows:
- Chromium plating is done on different parts of cars, buses and motor cycles to give them a shiny appearance.
- A fine layer of gold is deposited on the silver ornaments and they are called gold-plated ornaments.
- Iron used in constructing a building is coated with a layer of zinc. This protects iron from corrosion and rusting.
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संबंधित प्रश्न
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ______ terminal of the battery.
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?
Electroplating is an example for ______.
An electric current can produce
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory
The object to be electroplated is taken as ______ electrode.
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.
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(a) |
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______ |
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(b) |
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______ |
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(c) |
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______ |
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(d) |
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______ |
What are anodes and cathodes?
