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प्रश्न
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
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उत्तर
Electroplating of chromium is done on objects like water taps and cycle bell to give them a shiny appearance.
Explanation:
Because chromium has a shiny appearance, it resists scratches and does not corrode.
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संबंधित प्रश्न
Prepare a list of objects around you that are electroplated.
Electroplating is an example for ______.
An electric current can produce
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
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) |
|
______ |
A chemical reaction happens when electricity passes through various conducting liquids.
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.
