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Which of the following statement is inco...

Which of the following statement is incorrect?
(a) Cassiterite is not the ore of tin
(b) Metallurgy is a process of mixing of ore
(c). Concentration of chromite `(FeO.Cr_2O_3)` is done by magnetic separation
(d) ZnS with depressant NaCN from` Na_2[Zn(CN)_4]`.

A

(a) & (b)

B

Only (a)

C

(b), C & (d)

D

C and (d)

Text Solution

Verified by Experts

The correct Answer is:
A
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AAKASH INSTITUTE-M0ck test 26-EXAMPLE
  1. The incorrect statement regarding forth floatation process is

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  2. Oxidation state of the metal in the minerals haematite and magnetite, ...

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  3. Which of the following statement is incorrect? (a) Cassiterite is no...

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  4. Leaching of an ore is done by

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  5. In the electrolytic reduction of pure Al2O3. Fluorspar (CaF2) is added...

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  6. During the electroytic refining of zinc, which of the following statem...

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  7. In Mac-Arthur Forrest Cyanide method, silver is extracted from the sol...

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  8. In the extraction of copper, metal is formed in the Bessemer converter...

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  9. In the extraction of iron in the blast furnace, phosphorous separates ...

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  10. Which metal is used for making dry cell ?

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  11. The process used in converting hydrated Alumina into anhydrous alumina...

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  12. Hydrometallurgy method is used for the extraction of which of the foll...

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  13. Which of the following forms of iron has highest melting point ?

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  14. Consider the following reduction processes : (I) Fe2O3 + C rarr Fe ...

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  15. Which of the following statement is incorrect regarding Ellingham diag...

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  16. Which of the following statements is correct regarding the slag obtain...

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  17. Consider the following metallurgical processes: (I) Heating impure m...

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  18. Which one of the following given d-block elements has the lowest atomi...

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  19. Which of the following set has all the ions coloured ?

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  20. The electronic configuration of one of the coinage metals is

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