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Select the correct statement :...

Select the correct statement :

A

Magnetite is an ore of manganese

B

Pyrolusite is an ore of lea

C

Siderite is carbonate ore of iron

D

`FeS_2` is rolled gold

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-METALLURGY-EXERCISE 2 (LEVEL - I)
  1. Match column–I with column–II and select the correct answer using the ...

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  2. Blister copper is refined by stirring molten impure metal with green l...

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  3. Select the correct statement :

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  4. Three most occurring elements into the earth crust are :

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  5. A non magnetic ore contaning the impurity of FeCr(2)O(4) is concentrat...

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  6. A piece of steel is heated until redness and then plunged into cold wa...

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  7. Give the correct of initials T or F following statemetns. Use T if sta...

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  8. In the extraction of aluminium Process X: employed for red bauxite t...

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  9. Which of the following statement(s) is/are incorrect?

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  10. Si and Ge used for semiconductors are required to be of high purity an...

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  11. In electrorefining of metals anode and cathode are taken as thick slab...

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  12. Select the correct statement :

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  13. The metal for which, its property of formation of volatile complex is ...

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  14. Match List-I with List-II List-I(Property) I Explosive II Self-...

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  15. A metal has a high concentration into the earth crust and whose oxides...

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  16. The process, which does not use a catalyst is

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  17. Refractory materials are generally used in furnaces because

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  18. % of silver in ‘german silver’ is :

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  19. Modern method of steel manufacturing is :

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  20. When an impurity in a metal has greater affinity for oxygen and is mor...

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