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The conversion of pig iron to steel freq...

The conversion of pig iron to steel frequently requires the addition of:
(I) oxygen or iron oxide (II) transition elements (III)inner transition elements (IV)silica

A

I, II, III

B

I, II

C

II, III

D

I only

Text Solution

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The correct Answer is:
B
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VK JAISWAL ENGLISH-d-BLOCK ELEMENTS-Level 2
  1. Mark the correct statements:

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  2. Mercury is a liquid metal because

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  3. A white precipitate of AgCl dissolves in excess of : (I)NH(3)(aq) (...

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  4. In context of the lanthanoids, which of the following statement is not...

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  5. Properties common to the elements manganese, iron, cobalt, nickel nad ...

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  6. Which of the following process is not associated with steel making?

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  7. Oxygen in absorbed by molten Ag, which is evolved on cooling and the s...

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  8. Which of the following statements regarding copper salts is not true?

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  9. Zinc(II) ion on reaction with NaOH first give a white precipitate whic...

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  10. The conversion of pig iron to steel frequently requires the addition o...

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  11. Dilute nitric acid on reaction with silver liberates:

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  12. Which of the following double salt does not exists?

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  13. When steam is passed over red hot iron, the substance formed are:

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  14. The oxoanion which contains all equivalent M-O bond is: (I)CrO(4)^(...

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  15. In the extraction of silver by Mac-arther cyanide process, a small of ...

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  16. FeCr(2)O(4)+Na(2)CO(3)+O(2) overset("Fusion")(to) [X] overset(H^(+))un...

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  17. CuSO(4)(aq) overset(KCN(uarr))(to)M(darr)overset("Excess")underset(KCN...

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  18. Consider the following transformation : 2CuX(2) overset("Room temper...

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  19. Acidified permanganate solution does not oxidise:

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  20. Which of the following soled salt on heating with solid K(2)Cr(2)O(7) ...

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