Chemical Effects of Electric Current

Question 1: When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?

Answer:

The effect of an electric current is considered to create a different type of tester. Regardless of whether the current is small, it is possible to observe a magnetic needle deflection. A tester is made by using the magnetic effect of current. The magnetic needle deflection indicates that the circuit is complete and that the solution conducts electricity, indicating that it is a good conductor.

Question 2: When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?

Answer: 

Due to the following reasons, the bulb may not glow:

• A loose connection: A loose connection makes the circuit incomplete as it does not allow current to flow in the circuit.
• A fuse bulb is used: A fuse bulb does not glow as the filament gets broken.
• A discharged battery is used: A discharged battery doesn’t have power stored in it.
• The liquid used is distilled water: Distilled water is a poor conductor of electricity because it lacks dissolved salts that can provide it with ions needed to conduct electricity.
• A weak current is flowing in the circuit: A weak current does not have the power to heat the filament up to a level that makes then glow.

Question 3: Does pure water conduct electricity? If not, what can we do to make it conduct?

Answer:

No, pure water doesn’t conduct electricity. When salt is dissolved in pure water, it conducts electricity as it provide it with ions needed to conduct electricity.

Question 4: What are conductors and insulators?

Answer:

Conductors are materials that allow an electric current to flow through them. Materials that do not easily allow an electric current to flow through them, on the other hand, are poor conductors of electricity. Metals such as copper and aluminum have been discovered to carry electricity, whereas rubber, plastic, and wood do not.

Question 5: What is electroplating? 

Answer:

Electroplating is the process of depositing a layer of any desired metal on another material using electricity. It’s one of the most frequent uses of electric current’s chemical effects.

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Chemical reactions occur when an electric current flows through a conducting material. This chemical action of electric current is termed the Chemical Effect of Electric Current. For example, Hydrogen and oxygen separate from water when an electrical current is applied to it. Over the negative pole, hydrogen is deposited, and over the positive pole, oxygen is. Bubbles are evidence of hydrogen and oxygen deposition at various poles. Some liquids are good conductors and some are poor conductors of electricity. But, most of the liquids that conduct electricity are the solutions of acids, bases, and salts. Let’s understand the concepts of the Chemical Effects of Electric Current in this article!