Advertisements
Advertisements
प्रश्न
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off, the waste of the factory
विकल्प
in the nearby river
in the nearby pond
in the nearby cornfield
according to the disposal guidelines of the local authority
उत्तर
according to the disposal guidelines of the local authority
Explanation -
In electroplating factory, the disposal of the used conducting solution is a major concern because it is a polluting waste, therefore it should be disposed off according to the disposal guidelines of the local authority.
APPEARS IN
संबंधित प्रश्न
The passage of an electric current through a solution causes ______ effects.
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?
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?
Explain the following:
Short circuit.
Assertion: Parts of cars and bicycles are made iron with chromium coating.
Reason: Chromium does not corrode and resist scratches.
State some advantages of electroplating.
