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A smuggler could not carry gold by depos...

A smuggler could not carry gold by depositing iron chemically on the gold surface since

A

gold is denser

B

iron rusts

C

gold has higher reduction potential than iron

D

gold has lower reduction potential than iron

Text Solution

Verified by Experts

The correct Answer is:
C
Gold having higher `E_("red")^(@)` oxidises Fe to `Fe^(2+)`
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DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Unit Test 4
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  2. On the basis of information available from the reaction (4)/(3)Al+O(...

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  3. In the electrochemical reaction 2Fe^(3+)+Zn to Zn^(2+) + 2Fe^(2+) ...

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  4. If salt bridge is removed from two half cells, the voltage

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  5. The standard hydrogen electrode potential is zero, because

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  6. The standard reduction potential for Fe^(2+) //Fe and Sn^(2+) //Sn ele...

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  7. Standard potential (E^(@)) for some half reactions are given below (...

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  8. A smuggler could not carry gold by depositing iron chemically on the g...

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  9. The emf of a Daniell cell at 298 K is E(1) Zn|ZnSO(4)(0.01 M)||CuSO(...

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  10. Mark the false statement.

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  11. Cloud or fog is a colloidal in which the dispered phase and the dospe...

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  12. Which of the following constitutes irreversible colloidal system in wa...

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  13. surface tension of lyophilic sols is

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  14. Colloid of which one of the following can prepared by electrical dispe...

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  15. The formation of a colloidal from suspension is

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  16. the stability of lyophilic colloids is due to

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  17. At CMC, the surfactant molecules :

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  18. Which one of the following is an incorrect statement for physiosorptio...

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  19. The half life of ""^(24)Na is 15.0 hours. What percentage of it remain...

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  20. At equilibrium , number of atoms disintegrating at two different stage...

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