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Which is not self reducing throughout th...

Which is not self reducing throughout the metallurgical process?

A

`ZnS`

B

`HgS`

C

`Cu_2S`

D

`PbS`

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AAKASH INSTITUTE-TEST 2-EXERCISE
  1. Which is not an ore of copper?

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  2. Consider the following ores: Haematite, Magnetite, Siderite, Iron pyri...

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  3. Which is not self reducing throughout the metallurgical process?

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  4. When impurity in metal can easily be oxidised than metal itself, then ...

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  5. Which of the following can be extracted by thermite process?

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  6. Select the incorrect match.

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  7. Which of the following is most stable oxidation state of manganese?

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  8. Which of the following exhibits only one type of lattice structure?

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  9. Which of the following carbide is not possible with Lanthanides (Ln)?

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  10. Consider the following conversion CrO4^(-2) ⇋ Cr^(+3) find n factor...

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  11. Least acidic among following is

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  12. Potassium dichromate reacts with potassium iodide in acidic medium. Wh...

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  13. Which of the following does not have dπ - pπ bond?

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  14. Titration of KMnO4 in acidic medium is not satisfactory in presence of

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  15. The lanthanide which do not exhibit +2 oxidation state is

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  16. Which is not a bidentate ligand?

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  17. Which of the following is a coordination compound?

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  18. 0.1 mole of CrCl3.4NH3 reacts with excess of AgNO3 solution then 0.1 ...

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  19. Effective atomic number of chromium in [Cr(NH3)6]Cl3 complex is

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  20. Total number of stereoisomers in [Co(en)2Br2]^+ complex are

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