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Assertion : Extraction of iron metal fro...

Assertion : Extraction of iron metal from iron oxide ore is carried out by heating with coke.
Reason : The reaction `Fe_(2)O_(3(g))rarrFe_((x))+3//2O_(2(g))` is a spontaneous process.

A

Statement-I is True, Statement-II is True, Statement-II is a correct explanation for Statement-I

B

Statement-I is True, Statement-II is True, Statement-II is NOT a correct explanation for Statement-I

C

Statement-I is True, Statement-II is False.

D

Statement-I is False, Statement-II is True.

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The correct Answer is:
C
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Statement-I : Extraction of iron metal from iron oxide ore is carried out by heating with coke. Statement-II : The reaction Fe_(2)O_(3) (s) overset(Delta)rarr Fe(s) +3//2O_(2)(g) is a spontaneous process at standard condition.

Justify that the following reactions are redox reactions : Fe_(2)O_(3)(s)+3CO(g)to2Fe(s)+3CO_(2)(g)

Metals are extracted from their ores by a wide variety of techniques. The most common ores are oxides. Most metals are obtained by direct treatment of theirs ores with chemical agents, but the extraction of certain others require electrolysis. An example of the former type of process is the extraction of iron from its oxide, described by the following equation : Fe_(2) O_(3) + 3C rarr 2Fe + 3CO The relative ease of extraction of a metal from its oxide can be estimated using the Ellingham diagram, as shown in the figure. The diagram plots the free energies of formation of various oxides per mole of consumed oxygen as a function of absolute temperature. Which of the following best explains why the free energy of formation of Fe_(2)O_(3) becomes less negative as the temperature is increased.

Magnetite, Fe_(3)O_(4) , can be converted into metallic iron by heating with carbon monoxide as represented by this equation: Fe_(3)O_(4)(s)+CO(g) rarr Fe(s) +CO_(2)(g) The kilograms of Fe_(3)O_(4) which must be processed in this way to obtain 5.00 kg of iron, if the process is 85% efficient is closest to? [M: = Fe = 56]

Calculate the n-factor of reactants in the given reactions. (f ) FeS_(2)rarrFe_(2)O_(3)+SO_(2)

The valency of iron in Fe_2O_3 is

Which of the following statements is correct about the reaction given below:- 4Fe(s)+3O_(2)(g)rarr2Fe_(2)O_(3)(g)

Which of the following statements is correct about the reaction given below:- 4Fe(s)+3O_(2)(g)rarr2Fe_(2)O_(3)(g)

Name the four man zones of blast furnace in the extraction of Fe from Fe_(2)O_(3) .

Name the four main zones of blast furnace in the extraction of Fe from Fe_(2)O_(3) .

ALLEN-METALLURGY-EXERCISE-03
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  2. {:(Column-I(Ore),Column-II("Created formula & properties")),((A)"Iron ...

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  3. {:(Column-I("Metal"),column-II),((A)"Magnesite",(p)"Ore of magnesium")...

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  4. {:(Column-I(Ore),Column-II),((A)"Iron",(p)"Carbon reduction method"),(...

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  5. Statement-I : All the ores are mineral Statement-II : Most of the or...

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  7. Aluminium powder is used in thermite welding because :

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  8. Statement-I : CuFeS(2) is concentrated by froath floatation method S...

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  9. Reducing agent used for reduction of copper oxide in blast furnace is:...

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  10. Assertion : Extraction of iron metal from iron oxide ore is carried ou...

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  12. Assertion : Tin is refined by liquation method. Reason : Tin has low...

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  13. Dow's process of extraction of Mg involves extraction of Mg from sea w...

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  14. Dow's process of extraction of Mg involves extraction of Mg from sea w...

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  15. Dow's process of extraction of Mg involves extraction of Mg from sea w...

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  16. Dow's process of extraction of Mg involves extraction of Mg from sea w...

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  17. Extraction of aluminium can be understood by : Electrolytric redu...

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  18. Extraction of aluminium can be understood by : Electrolytric redu...

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  19. Extraction of aluminium can be understood by : Electrolytric redu...

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  20. Extraction of aluminium can be understood by : Electrolytric redu...

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