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प्रश्न
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
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
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?
An electric current can produce
Which of the following metals is used in electroplating to make objects appear shining?
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?
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) |
Piece of coal |
______ |
|
(b) |
Iron nail |
______ |
|
(c) |
Eraser |
______ |
|
(d) |
Steel spoon |
______ |
In the circuit given in the figure,
Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery.
Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore, she took a carbon rod as negative electrode. Will copper be still deposited on the carbon rod? Explain your answer.
The terminal which is connected to a positive terminal of a battery is called ______.
Name the process which shows the chemical effect of electric current?
State some advantages of electroplating.
