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The metal always found in the free state...

The metal always found in the free state is

A

Ai

B

Ag

C

Cu

D

Na

Text Solution

Verified by Experts

The correct Answer is:
A
Au is always found in native state.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
  1. The process of converting hydrated alumina into anhydrous alumina is c...

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  2. Match List I with List II and select the correct answer using the cod...

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  3. The metal always found in the free state is

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  4. Electromagnetic seperation is used in the concentration of

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  5. Which of the flowing metal is extracted by the electrometallurigical m...

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  6. For which ore of the metal, froth floatation method is used for concen...

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  7. Which of the following metal is leached by cyanide process ?

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  8. Pyrolusite is a/an

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  9. The common method of extraction of metals from oxide ores is

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  10. Which one of the following ores is not concentrated by froth floatatio...

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  11. Sulphide ores are generally concentrated by

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  12. The metal which cannot be obtained by electrolysis of aqueous solution...

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  13. The least stable oxide at room temperature is

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  14. What is insoluble in water ?

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  15. Which of the following is magnetite ?

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  16. Refractory materials are generally used in furnaces because

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  17. Which of the following is an ore of aluminium ?

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  18. The method of zone relining of metal is based on the principle of AIFM...

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  19. Process of heating ore is air to remove sulphur is:

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  20. The formula of azurite is :

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