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Reaction taking place during smelting is...

Reaction taking place during smelting is

A

`ZnCO_3rarrZnO+CO_2`

B

`Fe_2O_3+3Crarr2Fe+3CO`

C

`2CuS+3O_2rarr2CuO+2SO_2`

D

`2AI(OH)_3rarrAl_2O_3+3H_2O`

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AAKASH INSTITUTE ENGLISH-TEST 5-EXAMPLE
  1. The incorrect statement for Ellingham diagram is

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  2. the correct match of column I with column II is: Column I (impure meta...

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  3. Reaction taking place during smelting is

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  4. At the pressure of 3 atm,12.5 L of a certain gas weighs 15 g. The aver...

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  5. number of rings present in the complex [Co(en)2CIBr] is

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  6. The pair of coloured species in the foilowing is

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  7. When excess of silver nitrate is added to 200 ml of 0.05M [Cu(NH3)4]...

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  8. incorrect statement among the following is

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  9. In the extraction.of copper, the metal is obtained by the reduction of...

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  10. Complex(s) fotmed during the hydrometallurgy of Ag ore is/are

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  11. π- bond is not present in

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  12. The coordination number and gxidaion state of metal M in the complex [...

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  13. The hybridisation of Ag in [Ag(NH3)]2^(+) complex is

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  14. The ambidentate ligand among the following is

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  15. Which of following salt solution will impart greenish colour?

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  16. incorrect statement for transition element is

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  17. the correct order of first ionization energy is

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  18. the metal ions having 3d^2 configuration is/are(Ti=22, V=23, Cr=24, Mn...

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  19. Sodium metal is extracted by the electrolysis of

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  20. self reduction process cannot be used for the extraction of

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