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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
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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.
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संबंधित प्रश्न
The passage of an electric current through a solution causes ______ effects.
An electric current can produce
One of the most common applications of chemical effect of electric current is ______.
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
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?
You are provided with a magnetic compass, an empty matchbox, a battery of two cells and connecting wires. Using these objects, how will you make a tester for testing an electric circuit? Draw the necessary circuit diagram and explain.
______ is used in the extraction and purification of metals.
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.
