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Electrode potential data for a few eleme...

Electrode potential data for a few elements is given
`Fe_((aq))^(3+)+e^(-)toFe_((aq))^(2+),E^@=+0.77` V
`AI_((aq))^(3+)+3e^(-)toAI_((s)),E^@` =-1.66 V
`Br_(2(aq))+2e^(-)to2Br_((aq))^(-),E^@1 =+1.08`
Based on the data, the reducing power of `Fe^(2+)` , Al and `Br^(-)` will increases inthe order

A

`Br^(-) lt Fe^(2+) lt AI`

B

`Fe^(2+) lt AI lt Br^(-)`

C

`AI,Br^(-) lt Fe^(2+)`

D

`AI lt Fe^(2+) lt Br`

Text Solution

Verified by Experts

The correct Answer is:
A
Lower e reduction potential more is the reducing power.
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Electrode potential data are given below: Fe^(3+)(aq)+e^(-)rarrFe^(2+)(aq):E^(@)=+0.77V Al^(3+)+3e^(-)rarrAl(s):E^(@)=-1.66V Br_(2)(aq)+2e^(-)rarr2Br^(-)(aq):E^(@)=+1.08V , Based on the data, the reducing power of Fe^(2+) Al and Br^(-) will increase in the order

Standard electrode potential data is given below : Fe^(3+) (aq) + e ^(-) rarr Fe^(2+) (aq) , E^(o) = + 0.77 V Al^(3+) (aq) + 3e^(-) rarr Al (s) , E^(o) = - 1.66 V Br_(2) (aq) + 2e^(-) rarr 2Br^(-) (aq) , E^(o) = +1.08 V Based on the data given above, reducing power of Fe^(2+) Al and Br^(-) will increase in the order :

Electrode potential data are given below {:(Fe^(3+)(aq)+e^(-)rarrFe^(2+)(aq),E^(@)=+0.77V),(Al^(3+)(aq)+3e^(-)rarrAl(s),E^(@)=-1.66V),(Br_(2)(aq)+2e^(-)rarrBr^(-)(aq),E^(@)=+1.05V):} Based on the given data which statements is/are true?

Based on the data given below, the correct order of reducing power is: Fe_((aq.))^(3+) + e rarr Fe_((aq.))^(2+), E^(@) = +0.77 V Al_((aq.))^(3+) + 3e rarr Al_((s)), E^(@) = -1.66 V Br_(2(aq.)) + 2e rarr 2Br_((aq.))^(-), E^(@) = +1.08 V

Given : Fe^(2+)(aq)+2e^(-) rarr Fe(s), " "E^(c-)=-0.44V Al^(3)+3e^(-) rarr Al(s)," "E^(c-)=-1.66V Br^(2+)+2e^(-)rarr 2Br^(c-)(aq)" "E^(c-)=-1.08V The decreasing order of reducing power is ……………………………….. .

MTG GUIDE-ELECTROCHEMISTRY-NEET Café (Topicwise Practice Questions) (CELLS AND ELECTRODE POTENTIAL)
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  2. Which one of the following does not hold good for S.H.E?

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  3. For the electrochemical cell having E^@(M^+//M) =0.44 V and E^@(X//X...

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  4. The reference calomel electrode is made from which of the following?

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  6. If half-cell reaction A+e^(-)toA^- has a large negative reduction pote...

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  7. Which of the substances Na, Hg, S, Pt and graphite can be used as elec...

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  8. In a Galvanic cell

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  9. Electrode potential data for a few elements is given Fe((aq))^(3+)+e...

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  10. The standard reduction potentials of 4 clements are given below. Which...

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  11. Fluorine is the best oxidising agent because it has

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  12. Zine gives H2 with H2SO4 and HCl but not with HNO3 because

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  13. The cell reaction of the galvanic cell: Cu((s))|Cu((aq))^(2+)||Hg((a...

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  14. Determine the standard reduction potential for the half cell reaction,...

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  15. Which reaction is not feasible?

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  16. The standard reduction potential values of the three metallic cations ...

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  17. Stronger the oxidising agent, greater is the

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  18. The reaction that takes place at anode is

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  19. Chlorine cannot displace

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