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Standard reduction electrode potential o...

Standard reduction electrode potential of `Zn^(2+)//Zn` is -0.76V`. This means:

A

`ZnO` is reduced to `Zn` by `H_(2)`

B

`Zn` can't liberates `H_(2)` with conentrated acid

C

`Zn` is generally the anode in an electrochemical cell

D

`Zn` is generally the cathode in an electrochemical cell.

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE ENGLISH-D BLOCK ELEMENTS-EXERCISE-2 PART-II
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  2. Which of the following transition metal shows the highest oxidation st...

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  3. Standard reduction electrode potential of Zn^(2+)//Zn is -0.76V. This ...

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  4. E^(Theta) value for the couple Cr^(3+)//Cr^(2+) and Mn^(3+)//Mn^(2+) a...

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  5. Which one of the following show highest magnetic moment?

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  6. Amongst the following the lowest degree of paramagnetism per mole of t...

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  7. Which one of the transittion metal ions is coloured in aqueous solutio...

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  8. Compound that is both paramagnetic and coloured is:

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  9. Which of the following is expected to be coloured?

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  10. Most transition metals: (I) Form sets of compounds which display dif...

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  11. The aqueous solution of the following salts will be colored in the cas...

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  12. Which one of the following characteristics of the transition metals is...

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  13. German silver is an alloy of copper and:

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  14. Ferric sulphate on heating gives:

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  15. Anhydrous ferric chloride is prepared by:

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  16. At 300 C FeCl(3):

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  17. Iron is rendered passive by treatment with

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  18. Lucas reagent is:

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  19. Which one of the following dissolves in hot concentrated NaOH?

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  20. The compound used for gravimetric estimation of copper (II) is

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