Extraction of Non-metals from Ores
Chemistry ⇒ Metals and Non-metals
Extraction of Non-metals from Ores starts at 10 and continues till grade 12.
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Describe the main steps in the extraction of chlorine from brine.
Describe the process of extraction of sulphur by the Frasch process.
Describe the role of chlorine in the extraction of iodine from caliche ore.
Describe the steps involved in the extraction of iodine from caliche ore.
Explain why electrolysis is suitable for the extraction of chlorine from brine.
Explain why non-metals are generally not extracted by reduction with carbon.
Explain why the extraction of non-metals often requires different methods compared to metals.
Explain why the extraction of non-metals such as sulphur and phosphorus is important for industry.
Name the main ore of phosphorus used for its extraction.
Name the non-metal that is extracted from its ore by heating in the absence of air (destructive distillation).
Name the process used to extract nitrogen from air.
State the chemical formula of the main ore of chlorine.
State the main chemical reaction involved in the extraction of phosphorus from phosphate rock.
