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Match the following {:("List-I", "List...

Match the following
`{:("List-I", "List-II"),((A)"felspar",(I)[Ag_(3)SbS_(3)]),((B)"Asbestos", (II)Al_(2)O_(3)H_(2)O),((C)"Pyragyrite",(III)MgSO_(4).H_(2)O),((D)"diaspore",(IV) KAlSi_(3)O_(8)),(,(V)CaMg(SiO_(3))_(4)):}`
The correct answer is

A

`{:(A,B,C,D),(IV,V,II,I):}`

B

`{:(A,B,C,D),(IV,V,I,II):}`

C

`{:(A,B,C,D),(IV,I,III,II):}`

D

`{:(A,B,C,D),(II,V,IV,I):}`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-METALLURGY-EXERCISE - 7.2
  1. Match the following {:("List-I", "List-II"),((A)"felspar",(I)[Ag(3)S...

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  2. Metal sulphides occur mainly in rocks, but metal halides occur in lake...

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  3. Roasting of the sulphide ore is partially done in the metallurgical op...

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  4. Egg shells on treating with dilute mineral acids give brisk effervence...

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  5. What criterion is followed for the selection of the stationary phase i...

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  6. Which metals are extracted by auto-reduction process?

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  7. Why copper pyrites roasted partially during the extraction of copper?

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  8. Ag and Cu are below hydrogen in activity series, yet they are found in...

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  9. CO is more effective reducing agent than coke below 983 K, but above 9...

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  10. How the following metals are refined: (a) Copper with cuprous oxide ...

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  11. When heamatite is burnt in air with coke and lime at 2000^(@)C, steel ...

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  12. Why is the extraction of copper form pyries more difficult then that f...

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  13. How is leaching carried out in the case of low grade copper ores?

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  14. Hydrogen is a common reductant of organic chemicals, but it is not ...

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  15. Copper can be extracted by hydrometallurgy but not Zinc -explain.

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  16. Alkali metals are

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  17. Is it true that under certain conditions, Mg can reduce SiO2 and Si c...

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  18. Name the metal M, which is extracted based on the following equation ...

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  19. In the extraction of Fe, what is the advantage of difference in temper...

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  20. Metal oxide is easily reduced if the metal is in molten state at the t...

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  21. What are the compositions of gem stones, ruby and sapphire?

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