WebOct 4, 2024 · Answer: The deflection in magnetic needle shows that the circuit is complete and the solution conducts electricity, i.e., it is a good conductor. Question 3. Name three liquids, which when tested in the … WebJun 15, 2024 · Electrolysis. Electroplating. Electrolysis refers to the breaking apart of a molecule by the means of the electrochemical …
Role of nikel or copper in chromium electroplating 9th class ...
WebApr 27, 2024 · Copper stands as the second most effective metal that conducts electricity. The first one is silver, but it’s really expensive and not viable for large-scale applications. … WebIn the process of electroplating, both an anode and a cathode (the metal part to be coated) are immersed in an electrolytic bath that is composed of a solution of salts, including the metal to be plated. Here, when the electric current is passed through electrodes, the copper from the thick impure copper plate gets oxidized and dissolved in the ... brackley facebook page
Chemical Effects of Electric Current Class 8 Extra Questions and ...
WebApr 27, 2024 · Applications of Electrolysis- Physics Guide for Class 8. Applications of Electrolysis- Physics Guide for Class 8. ... in electrorefining of copper, a pure copper rod is made the cathode, and the impure copper rod as anode, with copper sulphate solution taken as the electrolyte. Electroplating: The process of depositing a thin layer of any ... WebElectroplating Process for a Silver Spoon with GoldTo coat a silver spoon with gold, we take the acidified solution of the metal to be coated (gold chloride ... WebApr 3, 2024 · 6. Give any two examples of good conductors of electricity. Ans. All metals (example gold, copper, iron, etc.) are good conductors of electricity. 7. Give any two examples of insulators. Ans. Examples of insulators are rubber, wood, plastic, etc. 8. Give examples of any two electrolytes. h2m mantech