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Q.

Some important ores of aluminium, iron, copper and zinc is:


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a

Aluminium- Bauxite, Cryolite, Iron-Haematite, Magnetite, Copper-Chalcopyrite, Chalcocite, Zinc- Calamine, Zinc blende

b

  Aluminium- Haematite, Magnetite, Iron-Aluminium- Bauxite, Copper- Calamine, Zinc blende, Zinc- Chalcopyrite, Chalcocite

c

Aluminium-Calamine, Zinc blende,  Iron-Haematite, Magnetite, Copper- Bauxite, Cryolite, Zinc- Bauxite, Cryolite

d

None of the above 

answer is A.

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Detailed Solution

Concept: An ore is a naturally occurring mineral that takes the form of rocks or sediments and can be mined for valuable materials. Ore is made of a specific composition.
Metals and their compounds can be found in minerals, which are natural materials.  Ores are minerals from which it is profitable to extract metals.  There are four different kinds of ores: oxide ores, halides ores, sulphides ores, and carbonates ores.
All minerals are ores, however not all minerals are ores. This is due to the possibility that some of them contain significant amounts of undesirable elements including sand, stones, and earthy contaminants.
The naturally occurring material from which minerals having economic value can be extracted is defined as ores.
(i)  Bauxite, Cryolite, Corundum are the important ores of aluminium
(ii)  Haematite, Magnetite, Limonite are some of the ores of iron
(iii) Chalcopyrite, Chalcocite, Covellite are the ores of copper
(iv) Calamine, Zinc blende, Zincite are the ores of zinc
Hence, the correct answer is option 1.
 
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Some important ores of aluminium, iron, copper and zinc is: