मराठी

The passage of an electric current through a solution causes ______ effects.

Advertisements
Advertisements

प्रश्न

The passage of an electric current through a solution causes ______ effects.

रिकाम्या जागा भरा
Advertisements

उत्तर

The passage of an electric current through a solution causes chemical effects.

Explanation:

The passage of an electric current through a conducting solution causes chemical reactions. As a result, bubbles of gas may be formed on the electrodes. Deposits of metal may be seen on electrodes. Changes in the colour of solutions may occur. The reaction would depend on what solution and electrodes are used. These are some of the chemical effects of the electric current.

shaalaa.com
Effects of Electric Current - Chemical Effects of Electric Current
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Chemical Effects of Electric Current - Exercises [पृष्ठ १४६]

APPEARS IN

एनसीईआरटी Science [English] Class 8
पाठ 11 Chemical Effects of Electric Current
Exercises | Q 1. (b) | पृष्ठ १४६

संबंधित प्रश्‍न

If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ______ terminal of the battery.


Name three liquids, which when tested in the manner shown in Figure, may cause the magnetic needle to deflect.


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?


Electroplating is an example for ______.


Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B as shown in the following figure.

Boojho's Experiment Paheli's Experiment
(A) (B) 

They found that the bulb in the setup A glows more brightly as compared to that of the setup B. You would conclude that


The object to be electroplated is taken as ______ electrode.


One of the most common applications of chemical effect of electric current is ______.


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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×