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MgO can be used as a refractory material...

`MgO` can be used as a refractory material because

A

It is a good electrical insulator

B

It is a good conductor of heat

C

It has high melting point

D

None of the above

Text Solution

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The correct Answer is:
A, B, C
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CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Multiple Correct)
  1. Which of the following reactions occurs during calcination ?

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  2. Leaching can be used for extraction of

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  3. MgO can be used as a refractory material because

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  4. Salt which is (are) least likely to find in minerals

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  5. The etraction of metals from oxide ores involves

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  6. According to Ellingham diagram the oxidation reaction of carbon and ca...

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  7. Which of the following statements are correct regarding metallurgy of ...

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  8. The major role of flourspar, CaF(2) which is added in small amount in ...

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  9. Which is correct process-mineral group in metallurgical extraction ?

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  10. Tempering of steel

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  11. Out of the following reduction processes : (i) Fe(2)O(3) + 3C rarr 2...

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  12. Out of the following matals that cannot be obtained by electrolysis of...

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  13. Silver containing lead as an impurity is not purified by

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  14. Select the correct statements for Ellingham diagram.

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  15. Which of the following statements is/are correct ?

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  16. Which of the following pairs consists of ore the same metal ?

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  17. Which of the following metal oxides are reduced by self-reduction meth...

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  18. Disadvantages of using carbon as a reducing agent :

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  19. Select the correct statements :

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  20. Froth flotation process used for the concentration of sulphide ore.

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