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Refractory materials are used for the co...

Refractory materials are used for the construction of furnaces because they :

A

are light in weight

B

can stand with high temperature

C

are leak proof

D

do not require to be replaced

Text Solution

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The correct Answer is:
B
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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
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  2. Which metal is extracted by electrolytic reduction ?

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  3. Refractory materials are used for the construction of furnaces because...

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  4. Roasting is generally done in case of :

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  5. Cupellation process is used in he metallurgy of :

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  6. Crystalline metal can be transformed into metallic glass by :

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  7. An alloy is :

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  8. The electrolytic method of reduction is employed for the preparation o...

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  9. Electrometallurgical process ( electrolysis of fused salt) is employed...

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  10. The metalloid amongst the following is:

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  11. When limestone is heated, carbon dioxide is given off. This operation ...

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  12. The salt which least likely to be found in minerals is

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  13. The role of calcination in metallurgical operations is:

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  14. Which metal cannot be extracted by carbon reduction process?

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  15. Hydrometallurgy is useful in the extraction of:

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  16. In electro-refining of metal the impure metal is made the anode and a ...

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  17. In the froth floatation process of concentration of ores, the ore part...

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  18. The metal that cannot be obtained by electrolysis of the aqueous solut...

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  19. The inner lining of a blast furnace is made up of

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  20. Diaspore is:

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