Q. 25.0( 6 Votes )
Electroplating is a very useful process. Explain how.
Electroplating is a very useful process. It is used to coat the metals with another metal. This prevents the exposure of metal to the atmosphere and protects them from corrosion.
Rate this question :
In the circuit given as Fig. 14.7, 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.
NCERT - Science Exemplar
Paheli wants to deposit silver on an iron spoon. She took silver nitrate (AgNO3) solution in a beaker and setup 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?NCERT - Science Exemplar
Which of the following metals is used in electroplating to make objects appear shining?NCERT - Science Exemplar
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factoryNCERT - Science Exemplar
Observe the circuit given in Fig. 14.8.
Boojho set up this circuit for purification of copper. What will be the nature of – (i) plate A (ii) plate B (iii) the solution. Explain the process of purification.
NCERT - Science Exemplar
Which properties of chromium metal make it suitable for electroplating it on car bumpers, bath taps and bicycle handlebars, etc., made of iron?Lakhmir Singh & Manjit Kaur - Science
A strip of impure copper metal is given to you. Describe briefly how you will purify it by using the chemical effect of electric current. Draw a labelled diagram of the experimental set up used for this purpose.Lakhmir Singh & Manjit Kaur - Science
For electroplating copper on an iron object, which terminal of the battery (positive or negative) is connected to the iron object? Also name the electrolyte you will use for this purpose.Lakhmir Singh & Manjit Kaur - Science
Which effect of electric current is utilized when a thin layer of chromium metal is deposited on an iron tap? What is this process known as?Lakhmir Singh & Manjit Kaur - Science
Why does a brand new bicycle have shining handlebar and wheel rims? What will happen if these are accidently scratched?Lakhmir Singh & Manjit Kaur - Science