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Pick out the correct statements...

Pick out the correct statements

A

All minerals are ores

B

All ores are minerals

C

All minerals are not ores

D

All ores are not minerals.

Text Solution

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The correct Answer is:
B, C
All ores are minerals but all minerals are not ores.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-SELECTED STRAIGHT OBJECTIVE TYPE MCQS
  1. In nature, non metals are found in the

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  2. Leaching is used for the concentration of

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  3. Pick out the correct statements

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  4. Of the following that cannot be obtained by electrolysis of the aqueou...

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  5. The element which exists in the liquid state at room tempertaure are

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  6. The major role of fluorpar (CaF2 ) which added in small quantities in ...

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  7. Which of the following oxides is/are amphoteric ?

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  8. Extraction of metal from the ore cassiterite involves

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  9. The carbon-based reduction method is not used in the extraction of

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  10. In the metallurgical processes, aluminium acts as

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  11. Hydrogen will not reduce

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  12. Froth floatation process may be used to increase the concentration of ...

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  13. In which of the following mineral aluminium is not present ?

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  14. An important ore of magensium is

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  15. Among the following statements the incoorect one is

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  16. In the commercial electrochemical process for aluminium extraction, th...

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  17. Which of the following process is used in the extractive metallurgy of...

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  18. Pb and Sn are extracted from their chief ore by

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  19. Which of the following ores is best concentrated by froth floatation m...

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  20. During electrolytic refining of copper, some metals present as impurit...

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