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Which of the group 14 element accure in...

Which of the group `14` element accure in nature as oxide?

A

`Sn`

B

`Pb`

C

`Ge`

D

`Si`

Text Solution

Verified by Experts

The correct Answer is:
b
The only important ore of sn is cassiterite ,Ge and Pb occure as sulphides while `Si` occure as silicon , Carbon occure as coal
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R SHARMA-GENERAL PRINCIPALS AND ISOLATION OF ELEMENTS-Question bank
  1. Which of the following processes causes are pollution ?

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  2. Which of the following group 13 element ocurre in nature as oxide ?

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  3. Which of the group 14 element accure in nature as oxide?

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  4. Which of the group 15 element accure in nature as phophatates ?

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  5. Major nature source of the balogens are

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  6. The mineral carallite contain

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  7. Wolframite (FeWO(2)) present as an inpurity in cassiteric (SaO(2)) can...

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  8. In the manufacture of iron from haematile, the limestone acts as a

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  9. All FeC alloys containing less than 2% carbon are called

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  10. In the centext of the hall-heroul process for the extraction of AI , w...

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  11. The metal that can't be obtained by electrolysis of an aquencous solut...

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  12. Which method of parification is represented by the following equation...

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  13. Oxidation state of the metal in the mineral heamatic and magnerite re...

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  14. The chemical composition of slag formed during the smelting process in...

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  15. partial masting of chalcopyries produces

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  16. Iron is removed from cahalcopyrite as

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  17. In self -reduction used in extraction of copper, the reducing agent i...

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  18. Native silver metel froms a water solube, complesx with a dilute aqueo...

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  19. which are contins bothiron and copper ?

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  20. The method chiefly used for the extraction of lead and tin from there ...

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