How many of the following are sulphide ores?
Siderite, Iron pyrites, Copper pyrites, Malachite, Cuprite, Copper glance, Sphalerite, Calamine, Zincite.

How many of the following ore(s) contain(s) copper

How many of the following are oxide ores Calamine,cuprite,zinxite, chalcocite,haematite, bauxite,magnetite,cassiterite.

How many ores are sulphide ores from the given ores ? Azurite, chalcoite,iron pyrites,limonite.

How many of the following are the minerals of aluminimum? Magnesite, cryolite, kaolinite, malachite, epsum salt, bauxite, cuprite

Out of the following which ores are calcinated during extraction (a) Copper pyrites (b) Malachite (c) Bauxite Correct answer is

The number of carbonate ore among the following. pyrolusite, Malachite, Diaspore, Calamine, Cassiterite, Siderite, Cerussite, Pyrite, Dolomite, Magnesite.

Name the sulphide ore of Copper. Describe how pure copper is extracted from this ore.

Consider the following ores: Haematite, Magnetite, Siderite, Iron pyrites. How many of above ores can be concentrated by magnetic separation method?

The number of different metals present in the ore copper pyrites is.

Amongest the following , how many ores can be concentrated by froth flotation process : Galena, sphalerit, cassiterite, calamine, chalcocite, haematite, argentite.