7.5 Silver | NEB Grade 12 Chemistry 🎯 Learning Outcomes After completion of the chapter, you should be able to: Describe the occurrence of silver Describe the extraction of silver by the cyanide process Explain the preparation and uses of silver chloride and silver nitrate 1 Silver — Occurrence & Ores Symbol Ag Atomic number…
7.4 Iron | NEB Grade 12 Chemistry 🎯 Learning Outcomes Candidates should be able to: Describe the occurrence of iron Describe the properties of iron State the uses of iron Describe the manufacture of steel by the basic oxygen method and the open hearth process Explain the corrosion of iron and its prevention 1 Iron…
7.3 Mercury | NEB Grade 12 Chemistry 🎯 Learning Outcomes The students should be able to: Describe the occurrence of mercury Describe the extraction of mercury State properties of mercury Explain the chemistry (preparation, properties, and uses) of calomel and corrosive sublimate 1 Mercury — Occurrence Name Mercury (also called quicksilver) Symbol Hg Main ore…
7.1 Heavy Metals — Copper | NEB Grade 12 Chemistry 🎯 Learning Outcomes After completion of the chapter, students should be able to: Describe the occurrence and important ores of copper Explain the main steps in the extraction of copper from copper pyrites Describe properties (reaction with air, acids, aqueous ammonia, and metal ions) of…
7.2 Zinc | NEB Grade 12 Chemistry 🎯 Learning Outcomes By the end of this topic, students should be able to: Describe the occurrence of zinc Describe the extraction of zinc Describe properties (with air, acid, alkali, displacement reaction) State the uses of zinc Explain the chemistry (preparation, properties, and uses) of white vitriol 1…