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प्रश्न
Name three liquids, which when tested in the manner shown in Figure, may cause the magnetic needle to deflect.
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उत्तर
Tap water, hydrochloric acid, sodium hydroxide.
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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.
Prepare a list of objects around you that are electroplated.
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?
A chemical reaction happens when electricity passes through various conducting liquids.
The most common industrial application of chemical effects of electric current is ______.
Liquids that conduct electricity are the solutions of ______.
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.
