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The smelting is carried our in a special...

The smelting is carried our in a specially built furnace known as

A

Blast furnace

B

Furnace

C

Reverberatory

D

None of these

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Boran forms a number of hydrides having the general formulae BnH_(n+4) and BnH_(n+6) . These are called boranes the simplest hydride of boran is diborane. Borane contains special types of bonds known as multicentric bonds. Borans have high heat of combustion. The type of hybridisation of boron in diborane is

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BEYOND PUBLICATION-PRINCIPLES OF METALLURGY-EXERCISE
  1. Which of the following means, simply getting rid of as much of the unw...

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  2. Which of the following is the place inside the furnace where the ore ...

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  3. The smelting is carried our in a specially built furnace known as

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  4. The electrolyte is an acidified solution of

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  5. Which of the following is the part of the furnace where the fuel is ke...

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  6. Which of the following is defined as the arrangement of the metals in ...

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  7. Which of the following metals are high reactivity ?

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  8. The process of extraction and isolation of the metal from its naturall...

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  9. The composition of Haematite is

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  10. One of the ores of Aluminium i

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  11. ………method is in use for removing gangue form sulphide ores.

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  12. The composition of copper pyrites is

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  13. The ore from which Mercury is obtained

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  14. In the word chalcogen, 'chalco' means

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  15. Least active metal among the following.

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  16. If the ore particles and the impurities are different in one of the pr...

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  17. The correct observation made by the student after putting clean pieces...

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  18. Which of the following metals can replace copper from a solution of co...

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  19. Which one of the following elements occur in free state

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  20. The reactivity of metals Al, Ag and Cu increase in the order of

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