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प्रश्न
Name three liquids, which when tested in the manner shown in Figure, may cause the magnetic needle to deflect.
उत्तर
Tap water, hydrochloric acid, sodium hydroxide.
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संबंधित प्रश्न
The passage of an electric current through a solution causes ______ effects.
Electroplating is an example for ______.
The object to be electroplated is taken as ______ electrode.
One of the most common applications of chemical effect of electric current is ______.
Why is tin electroplated on iron to make cans used for storing food?
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.
Explain the following:
Short circuit.
The most common industrial application of chemical effects of electric current is ______.
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 |
Assertion: Parts of cars and bicycles are made iron with chromium coating.
Reason: Chromium does not corrode and resist scratches.
