Q. 54.0( 14 Votes )
Silver article gets black coating. Name the phenomenon.
Answer :
Whenever a metal is exposed to air and water for a long time it gets surrounded by a layer due to any type of chemical reactions and gets corroded. This process is called corrosion. So when a silver article gets a black coating, the phenomenon is called as corrosion.
Rate this question :






















What is meant by rancidity? How it can be prevented?
Evergreen ScienceWrite true or false for the following statements:
Keeping food in airtight containers helps to slow down oxidation.
Evergreen ScienceA student adds 4 mL of acetic acid to a test tube containing 4 ml of distilled water. He then shakes the test tube and leaves it to settle. after about, 10 minutes he observes:
Science - Board PapersDescribe two examples of different oxidations of ethanol. Name the products obtained in each case.
Science - Board PapersWhat is an oxidizing agent? What happens when an oxidizing agent is added to propanol? Explain with the help of a chemical equation.
Science - Board Papers