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The two metals which can be extracted ju...

The two metals which can be extracted just by heating their sulphides in air are:

A

sodium and copper

B

copper and aluminium

C

potassium and zinc

D

mercury and copper

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The correct Answer is:
D
d
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. Which of the following is not an ore of Iron ?

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

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

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

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  5. An important ore of zinc metal is:

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  6. The chief ore of aluminium is

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

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

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

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

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

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

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

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

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

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

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  17. Which of the following metals can be obtained from haematite ore?

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  18. Brass is an alloy of:

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  19. The metal which is always present in an amalgam is :

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  20. Manganese metal is extracted from manganese dioxide by a reduction pro...

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