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प्रश्न
Name three liquids, which when tested in the manner shown in Figure, may cause the magnetic needle to deflect.
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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 ______.
Which of the following metals is used in electroplating to make objects appear shining?
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.
Explain the following:
Short circuit.
The most common industrial application of chemical effects of electric current is ______.
______ 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.
Name the process which shows the chemical effect of electric current?
What are anodes and cathodes?
