IB myp 4-5 Chemistry – Practice Questions- All Topics
Topic :Types of chemical reaction-Extraction of metals and corrosion
Topic :Types of chemical reaction-Weightage : 21 %
All Questions for Topic :acids and bases,neutral solutions,acid/base reactions,$\mathrm{pH}$ and indicators,formation of salts,uses of salts,redox reactions,reactivity series,extraction of metals and corrosion,electrochemical cells
Environmentally friendly anti-corrosion coatings
The following text is from the website of the United States Environmental Protection Agency. It outlines a project to investigate alternative anti-corrosion coatings.
Question:
Identify the problem for which the company Luna Innovations are aiming to develop solutions.
▶️Answer/Explanation
Ans: Corrosion or oxidation of metals.
Question:
Explain the risks involved in the current technology in use.
▶️Answer/Explanation
Ans: The current treatments – painting, priming and coating – are pollutants, toxic and possibly carcinogenic; they are therefore bad for the environment and potentially dangerous for the people applying them.
Question:
Green chemistry aims to reduce or eliminate the use or generation of hazardous substances. List the three advantages of the ISAM process that the company is developing and discuss the advantage of the green chemistry approach.
▶️Answer/Explanation
Ans: The ionic self–assembled monolayers (IASM) process has proven corrosion inhibition, does not contain or generate hazardous materials/waste; and has practical application methods; the advantage of the green chemistry approach to any industrial process is to reduce or eliminate the use or production of substances which are harmful to humans and the environment.