English

The object to be electroplated is taken as ______ electrode. - Science

Advertisements
Advertisements

Question

The object to be electroplated is taken as ______ electrode.

Fill in the Blanks
Advertisements

Solution

The object to be electroplated is taken as negative electrode.

Explanation:

The object to be electroplated is taken as negative electrode or cathode, so that the free ions get deposited on it.

shaalaa.com
Effects of Electric Current - Chemical Effects of Electric Current
  Is there an error in this question or solution?
Chapter 14: Chemical Effects of Electric Current - Very Short Answer Questions [Page 79]

APPEARS IN

NCERT Exemplar Science [English] Class 8
Chapter 14 Chemical Effects of Electric Current
Very Short Answer Questions | Q 8. (a) | Page 79

RELATED QUESTIONS

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?


Which of the following metals is used in electroplating to make objects appear shining?


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.


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? 


Observe the following circuits carefully. In which circuit will the bulb glow? Write Yes or No in the blank space provided along each of the circuit given in the figure.

(a)


Piece of coal

______

(b)


Iron nail

______

(c)


Eraser

______

(d)


Steel spoon

______

Liquids that conduct electricity are the solutions of ______.


Match the following

1. Anode a. Conducting solution
2. Cathode b. Positive terminal
3. Ions c. Negative terminal
4. Electrolyte d. Positively or negatively charged

State some advantages of electroplating.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×