Podcast
Questions and Answers
What are the most prominent causes responsible for the decay of metals?
What are the most prominent causes responsible for the decay of metals?
- Corrosion, abrasion, and erosion (correct)
- Evaporation, condensation, and sublimation
- Oxidation, reduction, and hydrolysis
- Crystallization, precipitation, and dissolution
What is the decay of a metal due to the action of surrounding medium called?
What is the decay of a metal due to the action of surrounding medium called?
- Abrasion
- Erosion
- Oxidation
- Corrosion (correct)
In what form do industrially important metals primarily occur in nature?
In what form do industrially important metals primarily occur in nature?
- Chlorides
- Carbonates
- Oxides (correct)
- Sulphates
What term is used to describe the reduction of metals from their ores at smelting works?
What term is used to describe the reduction of metals from their ores at smelting works?
What type of reaction is responsible for the decay of a metal when it comes in contact with gaseous or liquid medium?
What type of reaction is responsible for the decay of a metal when it comes in contact with gaseous or liquid medium?
What is the term used to describe the reduction of metals from their oxides at smelting works?
What is the term used to describe the reduction of metals from their oxides at smelting works?
In what form do industrially important metals primarily occur in nature?
In what form do industrially important metals primarily occur in nature?
What is the primary cause responsible for the decay of a metal when it comes in contact with gaseous or liquid medium?
What is the primary cause responsible for the decay of a metal when it comes in contact with gaseous or liquid medium?
What is the term used to describe any process of chemical or electrochemical decay or destruction of a metal due to the action of surrounding medium?
What is the term used to describe any process of chemical or electrochemical decay or destruction of a metal due to the action of surrounding medium?
7.11
7.11
What are the two main types of atmospheric corrosion?
What are the two main types of atmospheric corrosion?
What is responsible for the faster rate of corrosion in humid and polluted atmospheres near industrial areas?
What is responsible for the faster rate of corrosion in humid and polluted atmospheres near industrial areas?
What happens to metallic surfaces when exposed to air?
What happens to metallic surfaces when exposed to air?
What compounds do metallic surfaces get coated with in the presence of corrosive gases?
What compounds do metallic surfaces get coated with in the presence of corrosive gases?
What is the type of corrosion brought about by atmospheric conditions called?
What is the type of corrosion brought about by atmospheric conditions called?
