Principles of metallurgy-1

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PAVANI BHANU CHANDRA MURTHY, Teacher Chirala municipality Prakasam district Andhra Pradesh,8121445688.

COPPER-PYRITES, or Chalcopyrite, a copper iron sulphide (CuFeS2), an important ore of *

1 point

Iron

Copper

Piretes

Copper and sulfar

Hematite is the most important ore of iron. Hematite is one of the most abundant minerals on Earth's surface and in the shallow crust. It is an iron oxide with a chemical composition of *

1 point

Fe2O3

FeO

Fe2O4

FeSO4

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0 points

It is a toxic mercury sulfide mineral with a chemical composition of HgS.What is the name of it? *

1 point

Cinnabar

Galena

Carnallite

Pitch blend

Epsom salt is also known as magnesium sulfate. It’s a chemical compound made up of magnesium, sulfur, and oxygen.It gets its name from the town of Epsom in Surrey, England, where it was originally discovered.How many water molecules present in this salt. *

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Limestone is a common type of carbonate sedimentary rock. Which metallic element is extract from this? *

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Galena, also called lead glance, is the natural mineral form of lead(II) sulfide . It is the most important ore of lead.Formula of it. *

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HgS

PbS

PbSO4

PbO

Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula, *

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KMgCl4·8(H2O)

KClMgCl2·6(H2O)

KClMgCl3·6(H2O)

KClMgCl2

Bauxite is a rock formed from a reddish clay material called laterite soil and is most commonly found in tropical or subtropical regions. Bauxite is primarily an ore of *

1 point