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Consider the following reaction at 1000^...

Consider the following reaction at `1000^(@)`C .
(A) Zn(s) + 1/2 `O_2`(g) `rarr` ZnO(s)
`deltaG^(o)` = -360 kJ `mol^(-1)`
(B) C(gr) + `1/2 O_2(g) `rarr` CO(g)
`deltaG^(o)` =` -460 kJ mol^(-1)`
Choose the correct statement at `1000^(@)`C .

A

zinc can be oxidized by carbon monoxide

B

zinc oxide can be reduced by graphic

C

both statements (A) and (B) are true

D

both statements (A) and (B) are false

Text Solution

Verified by Experts

The correct Answer is:
B
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
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  3. Consider the following reaction at 1000^(@)C . (A) Zn(s) + 1/2 O2(g) ...

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  7. The magnetic ore is

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  8. When compared , deltaG^(o) for the formation of Al(2)O3 ,the deltaG^(o...

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  9. Which metal has a greater tendency to form metal oxide

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  10. Identify the reaction that does not take place in a blast furnace

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  12. Auto reduction is employed in the metallurgy of

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  14. In aluminium extraction by Bayer process, alumina is extracted from ba...

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  15. Bauxite is made up of Al(2)O3 + SiO2 + TiO2 + Fe(2)O3 . This ore is tr...

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  16. When copper pyrites is roasted in excess of air, a mixture of CuO + ...

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  17. Bauxite ore is made up of Al(2)O3 + SiO2 + TiO2 + Fe(2)O3 . This ore ...

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  18. The auto reduction process is not used in the metallurgy of

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  19. The incorrect statement among the following is

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