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GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 7 of 21 · Chemistry (Science, Grade 12)

Studies of Heavy Metals

8 topics
Board exam — Inorganic chemistry, 12 marks across 2 chapters
3 solved questions

Four metals treated the same way each time — ore, extraction, compounds and uses — for copper, zinc, mercury and iron, ending with the rusting of iron and how it is stopped.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Copper: ores, extraction from copper pyrites, properties and uses
2Compounds of copper: blue vitriol and the deep blue ammine complex
3Zinc: ores, extraction by the vertical retort process, properties and uses
4Compounds of zinc: white vitriol and zinc oxide
5Mercury: cinnabar, extraction, properties and uses
6Compounds of mercury: corrosive sublimate and calomel
7Iron: ores, extraction in the blast furnace, slag formation and the zones
8Cast iron, wrought iron and steel; the electrochemical theory of rusting and its prevention