Advertisements
Advertisements
Question
Which of the following metals is used in electroplating to make objects appear shining?
Options
Iron
Copper
Chromium
Aluminium
Advertisements
Solution
Chromium
Explanation:
Chromium is used for electroplating to make objects appear shining because chromium has a shiny appearance and it resists scratches.
APPEARS IN
RELATED QUESTIONS
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ______ terminal of the battery.
In an electrolyte the current is due to the flow of ______.
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates
The object to be electroplated is taken as ______ electrode.
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?
Why is tin electroplated on iron to make cans used for storing food?
In the circuit given as 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 still be deposited on the carbon rod? Explain your answer.
______ 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.
