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Which ore of the following is a mineral ...

Which ore of the following is a mineral of iron ?

A

Malachite

B

Cassiterite

C

Pyrolusite

D

Magnetite

Text Solution

Verified by Experts

The correct Answer is:
D
`Fe_(3)O_(4)` = Magnetite.
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ERRORLESS-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-PAST YEARS QUESTIONS
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  2. Identify the alloy containing a non metal as a constituent in it

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  3. Of the following substances the one which does not contain oxygen is

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  4. Metals are ususally not found as nitates in the ores'' Out of the fol...

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  5. Which of the following is a carbonate ore?

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  6. Which one is malachite from the following

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  7. Sulphide ores of metals are usually concentrated by both floatation pr...

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  8. (Ag +Pb) alloy overset("Melt and add zinc")rarr (Ag +Pb +Zn) "melt" ov...

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  9. In the exteraction of copper from its sulphide ore, the metal is fanal...

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  10. The following reaction take place in the blast in the proparation of i...

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  11. Aluminium is extracted from Alumina (Al(2)O3 ) by electrolysis of a mo...

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  12. Match the items of Column I with item of Column II and assign the corr...

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  14. Considering Ellingham diagram, which of the following metals can be us...

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  15. Method used for obtaining highly pure silicon used as a semiconductor ...

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  17. Identify the correct statement from the following

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  18. An organic compound contained 78%(by wt.) carbon and remaining % of hy...

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  19. Which of the following reactions is the metal displacement reaction? C...

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  20. The maximum temperature that can be achieve in blast furnance is:

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