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प्रश्न
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates
विकल्प
the chemical effect of current
the heating effect of current
the magnetic effect of current
the lightning effect of current
उत्तर
the chemical effect of current
Explanation -
The passage of an electric current through a conducting solution causes chemical reactions. As a result, change of colour of solution occurs. This indicates the chemical effect of current.
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संबंधित प्रश्न
Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B as shown in the figure.
 |
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| Boojho's Experiment | Paheli's Experiment |
| (A) | (B) |
They found that the bulb in the set up A glows more brightly as compared to that of the set up B. You would conclude that
Which of the following metals is used in electroplating to make objects appear shining?
The object to be electroplated is taken as ______ electrode.
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
In the circuit given in the 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 be still deposited on the carbon rod? Explain your answer.
You are provided with a magnetic compass, an empty matchbox, a battery of two cells and connecting wires. Using these objects, how will you make a tester for testing an electric circuit? Draw the necessary circuit diagram and explain.
The most common industrial application of chemical effects of electric current is ______.
The terminal which is connected to a positive terminal of a battery is called ______.
Name the process which shows the chemical effect of electric current?
State some advantages of electroplating.
