The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo:
Electric current plays an important role in today’s life. You can’t imagine our life without electricity or electric current, can you? Luigi Galvani accidentally discovered electric current. He observed that electric current flows across two different or dissimilar metals. Some examples of electric current include: Change in the color of solution, deposition of metal that can be seen on electrodes. The passage or path of an electric current through a conducting liquid is one of the chemical effects of electric current.
Electroplating is the process of deposition of one layer of metal over the other by the process of electrolysis. Electroplating is used in plating gold over expensive jewellery and watches, Zinc is coated over steel through this method to prevent corrosion. This process is similar to the electroforming process. In the electroplating process, both cathode and anode are immersed in a conducting liquid bath that consists of a solution of salts that needs to be plated. A direct current is passed through the solution due to which the metal ion started to transfer onto the metal that needs to be plated.
Electroplating of silver spoon into gold is mentioned below: –
Do liquids conduct electricity? Let us find the answer in here. Different or dissimilar solutions of liquids conduct electricity differently. Take an example of tap water and salt water. You can observe that salt water conducts electricity, it is because the dissolved material in the water helps it to conduct electricity. Resulting in flow of current in the case of salt water. Some became good conductors of electricity like copper and aluminum while others became insulators like wood and paper due to the presence of electrons in it. The presence of electrons in an object or metal or solution decides its conducting properties. Thus to know the property of any metal it is important to know the interaction of ions inside it.
Application of Chemical effect of electric current
Some of the applications of chemical effects of electric current are listed below: –
1. What are the three chemical effects of electric current?
Three effects of chemical effects of electric current are bubbles of the gases are formed over respective electrodes, deposition of one metal over another, change of color of the solution.
2. What chemical effects of electric current give some examples?
Examples of its chemical effect of electric current are gold and chromium plating over metals to prevent the action of corrosion, to electroplate car parts to prevent them from damaging, purification of gold and copper.
3. Who discovered the chemical effect of electric current?
Luigi Galvani accidentally discovered the chemical effect of electric current.
4. What are the applications of chemical effects of current?
Chemical effects of current are used in electroplating process (extraction of metal, coating one metal over another, decomposition of compounds)
5. What are the four effects of electricity?
The four effects of electricity are heating effect, chemical effect, magnetic effect and electric shocks.
6. How current is measured?
The current is measured in an Ampere. It expresses the quantity of electrical charge or electrons flowing over that particular period of time. The current can be measured using a device called ammeter.
The electric current flows through a conducting medium which results in the formation of chemical reaction. Chemical effects of electric current are bubbles of the gases that are formed over respective electrodes, deposition of one metal over another, change of color of the solution. Examples of chemical effects of electric current are gold and chromium plating over metals to prevent the action of corrosion, to electroplate car parts to prevent them from damaging, purification of gold and copper.
One of the main applications of this is electroplating. The examples of electroplating can be easily seen in decomposition or plating of any metal. Everywhere we go we can find electric current and its effects around us.