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Which of the following pairs consists of...

Which of the following pairs consists of ore the same metal ?

A

Magnesite, cerussite

B

Chalcocite, copper pyrites

C

Bauxite, corundum

D

Anglesite, cerussite

Text Solution

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The correct Answer is:
B, C, D
Chalcocite : `Cu_(2) S` , Pyrites : `CuFeS_(2)`
Bauxite : `Al_(2)O_(3).2H_(2)O` , Corundum : `Al_(2)O_(3)`
Anglesite : `PbSO_(4)` , Cerussite : `PbCO_(3)`
Mgnesite : `MgCO_(3)` , Cerussite : `PbCO_(3)`.
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CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Multiple Correct)
  1. Silver containing lead as an impurity is not purified by

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  2. Select the correct statements for Ellingham diagram.

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  3. Which of the following statements is/are correct ?

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  4. Which of the following pairs consists of ore the same metal ?

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  5. Which of the following metal oxides are reduced by self-reduction meth...

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  6. Disadvantages of using carbon as a reducing agent :

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  7. Select the correct statements :

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  8. Froth flotation process used for the concentration of sulphide ore.

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  9. Which of the following steps are involved in hydrometallurgical proces...

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  10. The reduction of an oxide by aluminium is not called

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  11. For the pyrometallurgical method used for the extraction of copper fro...

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  12. In Fe extraction, the roasting is carried out because

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  13. Select the correct statements (Ellingham diagram) :

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  14. Select the correct statements for Ellingham diagram.

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  15. The extraction of metals from sulphide ore involves

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  16. In the leaching of Ag(2)S with NaCN, a stream air is also passed. It i...

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  17. In the commercial extraction of iron, roasting is adopted because

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  18. Select the correct statements :

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  19. Select the correct statements for calcination :

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  20. H(2) is not widely used as the reducing agent in metallurgical process...

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