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Impurity present in red bauxite is...

Impurity present in red bauxite is

A

ZnO

B

`Fe_(2)O_(3)`

C

`SiO_(2)`

D

`Al_(2)O_(3)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-PRINCIPLES OF METALLURGY-Objective exercise -2 (Extraction of some metals)
  1. In the blast furnace, the reaction that is taking place at the tempera...

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  2. Metal used in the extraction of Mn and Cr from their oxides is

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  3. Impurity present in red bauxite is

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  4. Metal extracted from molten cryolite is

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  5. From the below Ellingham diagram, incorrect statement among the follo...

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  6. Metal extracted only by electrolysis process is

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  7. Heating mixture of Cu(2) O and Cu(2) S will give

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  8. Metal that can be extracted by eletrolysis of its salt even from aqueo...

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  9. The final step in the metallurgical extraction of Cu metal from Cu pyr...

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  10. The process of bringing the metal or its ore into solution by the acti...

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  11. Exothermic reaction among the following is A) Cr(2) O(3) + 2All to...

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  12. In the extraction of silver from argentite are the one is treated with...

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  13. Which of the following reagent is used to separate the impurity from r...

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  14. The metal iron obtained for the last furnace contains X' percent of ca...

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  15. Ag(2) S + 4 NaCN to 2X + Na(2) S Incorrect statement about 'X' is

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  16. Regarding the electrolysis of Alunina, the correct statements A) Cr...

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  17. Gold and silver are extracted from their repective ores by

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  18. In which of the following pair of metals, both are commercially extrac...

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  19. The percentage of carbon in steel is approx

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  20. Which of following metal is extracted by the electrolysis of its salt ...

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