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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
In an electrolyte the current is due to the flow of ______.
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
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?
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.
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 ______.
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 |
Name the process which shows the chemical effect of electric current?
