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Leaching is used for the concentration o...

Leaching is used for the concentration of

A

red bauxite

B

haematite

C

gold ore

D

silver ore.

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Leaching is used for the concentration of red bauxite , gold ores and silver ores.
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Assertion:- Leaching is a process of concentration of some specific ores. Reason:- Leaching involves treatement of the ore with a suitable reagent so as to make it soluble while impurities remains insoluble.

STATEMENT-1 : Leaching is a proess of concentration and STATEMENT-2 : Leaching involves treatment of the ore with a suitable reagent so as to make it soluble while impurities remains insoluble

Leaching is used for which metal/s ?

DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-SELECTED STRAIGHT OBJECTIVE TYPE MCQS
  1. In nature , metals are found in the

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  2. In nature, non metals are found in the

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  3. Leaching is used for the concentration of

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  4. Pick out the correct statements

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

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

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

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

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  9. Extraction of metal from the ore cassiterite involves

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

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  11. In the metallurgical processes, aluminium acts as

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  12. Hydrogen will not reduce

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

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

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  15. An important ore of magensium is

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  16. Among the following statements the incoorect one is

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

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

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

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

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