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Some statements about the below Ellingha...

Some statements about the below Ellingham diagram are given below

(a)At `1120^@ C MgO` will melt
(b) At the temperatures below `1400^@ C`, Mg can reduce `AL_2 O_3` and at the temperature above `1400^@ C` Al reduces MgO
(c ) At the temperature above `2000^@ C`, carbon can reduce MgO
The correct statement is/are

A

only a

B

only a and c

C

only c

D

a, b and c

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-PRINCIPLES OF METALLURGY-PRACTICE EXERCISE
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  6. Carbon cannot be used in the reduction of Al2 O3 because

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  9. Magnesium oxide is reduced in the Hansging method using

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

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  13. Some statements about Ellingham diagram a) Increase in the slope of th...

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  14. The metal that can be obtained even by the electrolysis of its aqueous...

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  15. the most electropositive metals are isolated from their ors by

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  17. Electric furnaces are lined with magnesia because

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