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What name is given to carbon reduction p...

What name is given to carbon reduction process for extracting the metal?

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(ii) Carbon reduction is used for the extraction of :

What is meant by self-reduction process?

Auto-reduction process is used for the extraction of :

Lead obtained form galena (PbS) by air reduction or carbon reduction process contains base metal (Cu, Bi, Sn, As) as impurities, due to the which lead becomes hard and brittle. Parke's process is also called.

Lead obtained form galena (PbS) by air reduction or carbon reduction process contains base metal (Cu, Bi, Sn, As) as impurities, due to the which lead becomes hard and brittle. Cupellation is used for purification of

Lead obtained from galena ore (PbS) by air reduction or carbon reduction process contains base metal (cu, Bi, As, Sn,Zn) as impurities. The removal of the impurity of Ag from the commercial lead is called.

The disadvantage of carbon reduction method are :

Highly electropositive metal(s) can not be commercially extracted by carbon reduction process at high temperature because these :

CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Short Answer Type
  1. Name the method of metal refining which is generally used when a metal...

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  2. When is electrolytic reduction applied for getting a metal?

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  3. What name is given to carbon reduction process for extracting the meta...

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  4. An ore has impurities which are attracted by magnet suggest process fo...

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  5. In moist air, copper corrodes to produce a green layer on the surface....

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  6. The value ofDelta (f) G^(Ө) for formation of Cr(2) O(3) is – 540 kJmo...

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  7. What do you understand by roasting in presence of NaCl?

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  8. Why NF3 cannot be hydrolysed, while NCl3 can be readily hydrolysed?

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  9. Why NI5 does not exist While PCl5 exists?

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  10. Why the boiling point of ammonia is greater than phosphine?

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  11. Why NO is paramagnetic?

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  12. Nitrogen exists as diatomic molecule and phosphorus as P(4). Why?

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  13. Why nitrogen gas is inert?

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  14. Why phosphorus is more reactive than nitrogen?

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  15. Why nitrogen does not form penthalides?

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  16. Why bismuth does not from pentahalides?

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  17. What type of hydridisation is involveed in the formation of pentahalid...

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  18. An element X belongs to group I or 2 or 15. Its oxide react with water...

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  19. A simole oxide of carbon and that another non-metal have the same Cp/C...

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  20. Which among the following is strongest reducing agent? BiH3,AsH3,PH3 a...

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