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Suggest a list of metals that are extrac...

Suggest a list of metals that are extracted electrolytically.

A

Na, K, Mg, Ca

B

Na, K, Mg, Cr

C

Na, K, Mg, Fe

D

Na, K, Mg, Co

Text Solution

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The correct Answer is:
A

Those metals which are highly reactive and have large negative Eº values can be extracted electrolytically. This type of metals are powerful reducing agents. e.g., sodium, potassium, calcium, magnesium etc.
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NTA MOCK TESTS-ELECTROCHEMISTRY TEST-SINGLE CHOICE
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  2. Consider the reaction, Cr(2)O(7)^(2-)+ 14H^(+) + 6e^(-) to 2 Cr^(3+)...

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  3. Suggest a list of metals that are extracted electrolytically.

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  4. By diluting a weak electrolyte, specific conductivity (K(c)) and equiv...

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  5. Two different electrolytic cells filled with molten Cu(NO(3))(2) and m...

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  6. A silver cup is plated with silver by passing 965 C of electricity. Th...

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  9. The number of coulombs required for the deposition of 107.870 g silver...

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  10. During electrolysis of water the volume of O(2) liberated is 2.24 dm^(...

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  11. H(2) cannot be displaced by

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  12. For a cell reaction, Zn+ Cu^(2+)(aq) to Zn^(2+)(aq)+ Cu Cell repre...

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  13. The standard reduction potential E for the half reactions are as: Zn...

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  14. When 9.65 C of electricity is passed through a solution of silver nitr...

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  15. On passing 0.1 F of electricity through molten solution of. Al(2)O(3) ...

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  16. On passing 3 A of electricity for 50 min, 1.8 g metal deposits. The eq...

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  17. 3 Faradays of electricity was passed through an aqueous solution of ir...

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  18. Standard reduction electrode potentials of three metals A,B and C are ...

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  19. Which of the following is not correct?

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  20. In which of the following electrochemical cell overall cell reaction i...

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