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Which of the following is correct?...

Which of the following is correct?

A

Zinc acts as cathode in Daniel cell

B

In a Li-Zn couple, zinc acts as anode

C

Copper displaces iron from its salt solution

D

Zinc displaces tin from its salt solution

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The correct Answer is:
D
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AAKASH SERIES-ELECTROCHEMISTRY -LEVEL-I ( EXERCISE-I)
  1. (A): A salt bridge allows the flow of current by completing the electr...

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  2. The function of a salt bridge is

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  3. Which of the following is correct?

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  4. Which of the following statements is true for the electrochemical Dani...

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  5. The cell reaction of the galvanic cell, Cu(s) // Cu^(2+)(aq) // Hg^(2+...

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  6. (A) : The Daniel cell becomes dead after some time (R) : Oxidation...

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  7. The cell for which the cell reaction is H2 + Cu^(2+) to 2H^(+) + Cu is...

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  8. Which metal will dissolve if the cell works Cu|Cu^(2+)||Ag^(+)|Ag

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  9. The chemical reaction 2AgCl((s)) + H(2(g)) to 2HCl((aq)) + 2Ag((s)) t...

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  10. Which is a correct cell reaction ?

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  11. Stronger the oxidising agent greater is the

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  12. The reaction , 1//2H(2(g)) + AgCl((s)) to H((aq))^(+) + Cl((aq))^(-) ...

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  13. For spontanity of a cell, which is correct ?

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  14. If the cell reaction is spontaneous

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  15. (A) : If E^(0) " of " Cu^(2+)//Cu=+0.34V and E^(0) " of "Ag^(+) // Ag ...

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  16. The metal that cannot displace hydrogen from dilute hydrochloric acid ...

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  17. A standard hydrogen electrode has zero electrode potential because

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  18. The following statements about electro chemical series are i) the ...

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  19. The following are some statements about normal hydrogen electrode ...

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  20. Which defines the standard reduction electrode potential of Zn^(2+) io...

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