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Active metals are not extracted by the e...

Active metals are not extracted by the electrolysis or aqueous electrolytes. Explain.

A

Metal produced in less quantity

B

`H_2O` undergoes reduction preferential to metal ion and liberates `H_2` gas

C

Aqueous solutions are stable to electrolysis

D

Metals are formed in liquid state

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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
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  5. Which of the following is correct about calcination ?

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  6. Which of the following is true about preparation of Iron by smelting p...

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  7. Which of the following is true about the electrolytic refining of meta...

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  8. Aluminium is more reactive than Iron, but rate of corrosion in Iron is...

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  9. Which of the following method is used for purification of metals conta...

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  12. Assertion (A) : Gold is available in nature in free state. Reason (R) ...

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  13. Metals are available in: i) free state ii) mixed state.

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  14. Assertion (A) : Bauxite is ore for Aluminium metal. Reason (R) : The m...

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  15. Assertion (A) : Oxygen - sulpher group in the periodic table is called...

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  16. The correct steps of process of metallurgy is i) purification of the m...

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  17. P: Extraction of the metal from Its ores depends on the physical prope...

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  18. Which of the following reduction is suitable for extraction of crude m...

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  19. P: Corrosion of iron is an oxidation process. Q : Corrosion occurs in...

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