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Given standard electrode potentials: K...

Given standard electrode potentials:
`K^+//K=-2.93 V,` `Ag^+//Ag=+0.80 V`
`Hg^(2+)//Hg=+0.79 V,` `Mg^(2+)//Mg=-2.37 V`
`Cr^(3+)//Cr=-0.74` V
Which acts as a better oxidising agent?

A

`Mg^(2+)`

B

`Cr^(3+)`

C

`Ag^(+)`

D

`k^+`

Text Solution

Verified by Experts

The correct Answer is:
C
Higher the value of reduction potential, better will be the oxidising agent
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MTG GUIDE-ELECTROCHEMISTRY-NEET Café (Topicwise Practice Questions) (CELLS AND ELECTRODE POTENTIAL)
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  2. Given standard electrode potentials: K^+//K=-2.93 V, Ag^+//Ag=+0.80 ...

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  3. The tendencies of the electrodes made up of Cu, Zn and Ag to release e...

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  4. The standard reduction potential at 298 K for the following half cell ...

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  5. The position of some metals in the electrochemical series in decreasin...

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  6. Which is the correct order of increasing oxidising ability?

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  7. When [Zn^(2+)] = [Cu^(2+] = 1, the electrical potential of Daniell cel...

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  8. Which of the following will turn blue when placed in the copper vessel...

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  9. Which of the following ionic combinations may lead to the formation of...

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  10. Which statement about standard reduction potentials is correct?

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  11. Which is correct about the reaction between H2O2 and O3 ? (Given: E(H2...

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  12. Red hot carbon will remove oxygen from the oxide 40 and BO but not fro...

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  13. A solution contains Pb^(2+) and Fe^(2+) ions. To it some quantity of F...

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  14. Which of the following statements is true for the electro chemical Dan...

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  15. Which among the following is not correct?

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  16. Standard electrode potentials for Fe electrodes are given as Fe^(2+)...

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  17. Given : E(Fe^(3+)//Fe)^@=-0.036 V E(Fe^(2+)//Fe)^@=-0.439 V. The valu...

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  18. Daniell cell is show as

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  19. In a cell of normal hydrogen electrode and calomel electrode, the elec...

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  20. Two weak acid solutions HA1 and HA2 each with the same concentration a...

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