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(a) Which metal is extracted from calami...

(a) Which metal is extracted from calamine ore ?
(b) Name one ore of mercury. Which mercury compound is present in this ore ? Write its chemical formula.
(c) How is copper extracted from its sulphide ore (copper glance), `Cu_(2)S` ? Explain with equations of the reactions involved.
(d). What is an alloy ? Give two examples of alloys.
(e) How are the properties of an alloy different from those of the constituent elements ?

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How is copper metal extracted from its sulphide ore ?

How is copper extracted from low grade copper ores?

Extraction of copper from its sulphide ore.

Copper is extracted from sulphide ore using the method :

LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. (a) Which metal is extracted from bauxite ore ? (b) Give the name of...

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  2. (a) Name the metal which is extracted from the ore called 'rock salt' ...

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  3. (a) Which metal is extracted from calamine ore ? (b) Name one ore of...

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  4. An ore of manganese metal is:

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  5. Which of the following is not an ore of Iron ?

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  6. The metal which can be extracted from the bauxite ore is:

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  7. The two metals which can be extracted just by heating their sulphides ...

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  8. A common metal which is highly resistant to corrosion is :

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  9. An important ore of zinc metal is:

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  10. The chief ore of aluminium is

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  11. The two metals which are extracted by means of electrolytic reduction ...

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  12. Stainless steel is very useful material for our life. In stainless ste...

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  13. If copper is kept open in air, it slowly loses its shining brown surfa...

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  14. Which among the following alloys contain mercury as one of its constit...

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  15. Which of the following is an ore of mercury metal?

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  16. Calamine ore can be used to extract one of the following metals. This ...

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  17. Which of the followmg metals exist in their native state in nature?

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  18. Which of the following reactants are used to carry out the thermite re...

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  19. Which of the following alloys contains a non-metal as one of the const...

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  20. During the refining of a impure metal by electrolysis, the pure metal ...

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