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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
पर्याय
the chemical effect of current
the heating effect of current
the magnetic effect of current
the lightning effect of current
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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
Which of the following metals is used in electroplating to make objects appear shining?
One of the most common applications of chemical effect of electric current is ______.
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?
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.
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.
Explain the following:
Short circuit.
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 ______.
______ is used in the extraction and purification of metals.
State some advantages of electroplating.
