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Mixture of calcium carbonate and magnesi...

Mixture of calcium carbonate and magnesium carbonate are used as flux in isolation of ....... metals.

A

Steel

B

Copper

C

Iron

D

Zinc

Text Solution

Verified by Experts

The correct Answer is:
C
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KUMAR PRAKASHAN-THE s-BLOCK ELEMENTS-Section-C Multiple Choice Questions (MCQs)
  1. Calcium oxide on mixing with caustic soda formed .....

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  2. Which of the following is not use of CaO ?

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  3. Mixture of calcium carbonate and magnesium carbonate are used as flux ...

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  4. Formula for Plaster of Paris....

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  5. Setting time can be reduced by addition of ...... in plaster of Paris.

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  6. Setting time can be increase by addition of ...... in plaster of Paris...

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  7. Mixture of ....... and plaster of paris, which on setting become hard ...

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  8. Raw material in production of cement is......

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  9. What can be formed on heating gypsum at 120^(@)C ?

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  10. On passing CO(2) gas for a certain period of time through lime water,...

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  11. Which of the following is a component of Portland cement?

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  12. Due to presence of .......... Portland cement has ash color.

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  13. Setting time for di calcium and tricalcium silicate are.......days res...

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  14. Which metal is present in chlorophyll which is present in leaves of pl...

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  15. When CO(2) is passed through the solution of slaked lime it forms....

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  16. Which of the following oxide react with quick lime and produce Ca(PO(4...

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  17. When CO(2) is pass through the solution of Ca(OH)(2), it produce………..

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  18. An adult human body contain approximately ... Mg.

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  19. Which of the following does not shows any effect on cement strength ?

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  20. Which of the following metal is present in 100 miligram / liter concen...

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