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Among Na,Hg,S,Pt and graphite which can ...

Among `Na,Hg,S,Pt` and graphite which can be used as electodes in electrolytic cell having aqueous solutions?

A

`Na` and `S`

B

`Na, Hg` and `Pt`

C

`Na, Hg` and `S`

D

`Hg, Pt` and graphite

Text Solution

Verified by Experts

The correct Answer is:
D
`Na` canot be used in aqueous solution as it reacts violently with water.
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P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
  1. Among Na,Hg,S,Pt and graphite which can be used as electodes in electr...

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  2. A current of 0.5 A is passed through acidulated water for 30 minute. C...

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  3. A copper cell containing 5% solution of CuSO(4).5H(2)O and a silver ce...

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  4. Some quantity of electricity being used to liberate iodine (at anode) ...

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  5. A test for complete romovel of Cu^(2+) ions form a solution of Cu((aq....

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  6. A Zn rod weighing 25g was kept in 100 mL of 1M CuSO(4) solution. After...

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  7. Assume that impure copper contains only Fe, Au and Ag as impurities. A...

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  8. 50 mL of 0.1 M CuSO(4) solution is electrolysed using Pt electrodes wi...

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  9. An oxide of metal ("at. wt. "= 112) contain 12.5% O(2) by weight. The ...

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  10. 19g fused SnCl(2) was electrolysed using inert electrodes. 0.119g Sn w...

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  11. A lead storage cell is discharged which causes the H(2)SO(4) electroly...

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  12. Two litre solution of a buffer mixture containing 1.0 M NaH(2)PO(4) an...

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  13. A current of 40 microampere is passed through a solution of AgNO(3) fo...

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  14. Suppose a fully charged battery containes 1.50 litre of 5.0 M H(2)SO(4...

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  15. In an analytical determination of aresenic , a solution containing are...

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  16. Assuming that a constant current is delivered, how many kW-h of electr...

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  17. Find the e.m.f. of the following cell at 18^(@)C taking the degree of ...

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  18. If it is disreed to construct the following voltaic cell to have E(cel...

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  19. The e.m.f. of the obtained by combining Zn and Cu electrodes of Danie...

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  20. Calcualte the potential of an indicator electrode versus the standard ...

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  21. An electrode is prepared by dipping a silver strip into a solution sat...

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