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Name the method used for the refining of...

Name the method used for the refining of Nickel metal.

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Method used for refining of nickel metalid Mond's process. In this processnickel is heated in a steam of corbon monoxide, which yields in the formation of nickel carbonyl. Nickel carbonyl on further heating decomposes to five pure nickel.
`Ni+4COoverset(330-350K)toNi(CO)_4`
`Ni(CO)_4overset(450-470K)toNi+4CO`
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XII BOARDS PREVIOUS YEAR-XII BOARDS-Set -I
  1. How many atoms constitute one unit cell of a face-centered cubic cryst...

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  2. Name the method used for the refining of Nickel metal.

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  3. What is the covalence of nitrogen in N2O5?

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  4. Write the IUPAC name of CH3-CH-CH2-CH=CH2

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  5. What happens when CH(3)-Br is treated with KCN?

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  6. Write the structure of 3-methyl butanal.

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  7. Arrange the following inincreasing order of their basic stregth in aqu...

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  8. What are the three types of RNA molecules which perform different func...

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  9. 18 g of glucose (C(6)H(12)O(6)) is dissolved in 1 kg of water in a sau...

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  10. The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm^(-1...

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  11. Write the dispersed phase nd dispersion medium in the colloidal system...

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  12. Out of Lyophilic and Lyophobic sols, which can be easily coagulated on...

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  13. Write the differences between physisorption and chemisorption with res...

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  14. (a) Which solution is used for the leaching of silver metal in the pr...

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  15. What happens when : (i) PCl(5), is heated (ii) H(3)PO(3) is heated

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  16. (a) Which metal in the first transition series (3d series) exhibits +...

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  17. Chlorobenzene is extremely less reactive towards nucleophilic substitu...

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  18. Explain the mechanism of the reaction is given below : 2CH3-CH2-OHund...

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  19. How will you convert (i) Propene to Propan-2-ol? (ii) Phenol to 2...

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  20. (a) What type of semiconductor is obtained when silicon is doped with...

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