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Short Tricks: Electrochemistry Video Lecture | Chemistry Class 12 - NEET
FAQs on Short Tricks: Electrochemistry Video Lecture - Chemistry Class 12 - NEET
| 1. What is electrochemistry? |  |
Ans. Electrochemistry is a branch of chemistry that deals with the study of chemical reactions that involve the transfer of electrons. It focuses on the relationship between electric current and chemical reactions, including topics such as electrolysis, batteries, and corrosion.
| 2. How does an electrolyte work in electrochemistry? | |
Ans. An electrolyte is a substance that conducts electricity when dissolved in a solvent or in molten form. In electrochemistry, an electrolyte helps facilitate the transfer of ions between electrodes, allowing for the flow of electric current. The ions in the electrolyte either gain or lose electrons at the electrodes, leading to chemical reactions.
| 3. What is the significance of oxidation and reduction reactions in electrochemistry? | |
Ans. Oxidation and reduction reactions, collectively known as redox reactions, play a vital role in electrochemistry. In these reactions, one species loses electrons (oxidation) while another gains electrons (reduction). This transfer of electrons allows for the flow of electric current and is essential for processes like electrolysis, battery operation, and corrosion.
| 4. How do batteries work based on electrochemistry principles? | |
Ans. Batteries operate on the principles of electrochemistry. They consist of two electrodes, typically a cathode and an anode, immersed in an electrolyte solution. During discharge, the anode undergoes oxidation, releasing electrons that flow through an external circuit to the cathode, where reduction occurs. This flow of electrons creates an electric current that can be utilized to power devices.
| 5. What is corrosion and how does electrochemistry explain it? | |
Ans. Corrosion is the gradual deterioration of a metal due to chemical reactions with its environment. Electrochemistry explains corrosion as an electrochemical process involving oxidation and reduction reactions. When a metal comes into contact with an electrolyte, such as moisture or an acidic solution, it undergoes oxidation, leading to the formation of metal ions. These metal ions can then react with other substances, resulting in the corrosion of the metal.
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