The correct ste of carbonate ores is
(a) Magnesite (b) Siderite (c) Zincite (d) Argentite

Write the chemical formulae of the following ores : (a) Haematite (b) Magnetite (c) Limonite (d) Siderite

How many of the following are silver ores (a) Chlorargirite (b) Argentitei (c) Pyrargirite (d) Azurite (e) Calamine

Which one is the ore of copper ? (a) Bauxite (b) Dolomite (c) haematite (d) Chalcopyrite

The total number of carbonate ores among the following is . ltBRgt (i) Argentite (ii) Calamine (iii) Malachite (iv) Siderite (v) Galena (vi) Magnetite (vii) Dolomite (viii) Cassiterite (ix) Bauxite

Give the correct order of average oxidation state of Fe in the ores given: haematite (P). Magnetite (Q), siderite (R ).

Name two examples each of the following types of ores : (a) Oxides (b) Sulphides (c) Carbonates (d) Silicates

The main ore used for the extraction of iron is: (a)Haematite (b)Calamine (c)Bauxite (d)Cryolite

Write chemical formulae of the following ores: (a ) Calamine (b ) Haematite (c ) Magnetite (d) Corundum