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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 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?
The object to be electroplated is taken as ______ electrode.
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
Paheli wants to deposit silver on an iron spoon. She took silver nitrate (AgNO3) solution in a beaker and set up a simple circuit for electroplating. Which terminal of the battery should the spoon be connected to? What material should the other electrode be made of?
A chemical reaction happens when electricity passes through various conducting liquids.
The terminal which is connected to a positive terminal of a battery is called ______.
Liquids that conduct electricity are the solutions of ______.
______ 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 |
Name the process which shows the chemical effect of electric current?
