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which of the following is not a basic fl...

which of the following is not a basic flux ?

A

CaO

B

`SiO_2`

C

`MgCO_3`

D

`Fe_2O_3`

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The correct Answer is:
B
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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Multiple Choice Questions - Level - II
  1. The formula of siderite ore is

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  2. Copper is refined by :

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  3. which of the following is not a basic flux ?

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  4. An example of halide ore is :

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  5. The sulphide ores are generally concentrated by :

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  6. Carbon reduction method is used in the extraction of :

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  7. The process of removal of impurities form a crude metal is called :

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  8. The common depressant used in froth floatation process for separation ...

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  9. When copper ore is mixed with silica in a reverberatory furnace copper...

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  10. Which of the following reactions is an example of auto reduction ?

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  11. In the extraction of copper from its sulphide ore, the metal is formed...

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  12. Electrolytic refining is used to purify which of the following metal...

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  13. Extraction of gold and silver involves leaching the metal with CN^- io...

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  14. Coke is used in metallurgical process process chiefly as

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  15. Which of the following statement is not true ?

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  16. In the equation , 4M +8CN^(-) +2H2O+O2 rarr 4[M(CN)2]^(-)+4OH^(-), the...

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  17. Identify the reaction that does not take place in a blast furnace.

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  18. The temperature of the slag zone in the metallurgy of iron using blast...

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  19. Which of the following methods is used for obtaining aluminium metal ?

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  20. The metal used to recover copper from a solution of copper sulphate is

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