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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

The standard potential of the cell in the following reaction is ______. CdA(s)+CuA(1M)2+⟶CdA(1M)2++CuA(s) ECdECu(ECd∘=-0.403V,ECu∘=0.334V) - Chemistry

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प्रश्न

The standard potential of the cell in the following reaction is ______.

\[\ce{Cd_{(s)} + Cu^{2+}_{(1M)} -> Cd^{2+}_{(1M)} + Cu_{(s)}}\]

`("E"_("Cd")^circ = - 0.403V, "E"_("Cu")^circ = 0.334V)`

पर्याय

  • – 0.737 V

  • 0.737 V

  • – 0.069 V

  • 0.069 V

MCQ
रिकाम्या जागा भरा

उत्तर

The standard potential of the cell in the following reaction is 0.737 V.

Explanation:

`"E"_"cell"^circ = "E"_"RHE"^circ - "E"_"LHE"^circ`

= 0.334 – (– 0.403 V)

= 0.737 V

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Electrode Potential and Cell Potential
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2021-2022 (March) Set 1

संबंधित प्रश्‍न

Consider the half reactions with standard potentials.

  1. \[\ce{Ag^{\oplus}_{ (aq)} + e^{\ominus} -> Ag_{(s)}E^\circ = 0.8 V}\] 
  2. \[\ce{I2_{(s)} + 2e^\ominus -> 2I^{\ominus}_{(aq)} E^\circ = 0.53V}\]
  3. \[\ce{Pb^{2\oplus}_{(aq)} + 2e^{\ominus} -> Pb_{(s)} E^\circ = -0.13 V}\]
  4. \[\ce{Fe^{2\oplus} + 2e^{\ominus} -> Fe_{(s)} E^\circ = -0.44 V}\]

The strongest oxidising  and reducing agents respectively are ______.


Answer the following in one or two sentences.

What is standard cell potential for the reaction

\[\ce{3Ni_{(s)} + 2Al^{3+} (1M) → 3Ni^{2+} (1M) + 2Al(s)}\], if `E_"Ni"^circ` = –0.25 V and  `"E"_("Al")^circ` = –1.66 V?


Answer the following in one or two sentences.

Write Nernst equation. What part of it represents the correction factor for nonstandard state conditions?


Answer the following in brief.

Construct a galvanic cell from the electrodes Co3+ | Co and Mn2+/Mn. `"E"_"Co"^circ` = 1.82 V, `"E"_"Mn"^circ` = –1.18 V. Calculate `"E"_"cell"^circ`


Answer the following:

Predict whether the following reaction would occur spontaneously under standard state condition.

`2"Br"_(("aq"))^(-) + "Sn"_(("aq"))^(2+) -> "Br"_(2("l")) + "Sn"_(("s"))`


What is cell voltage?


Standard reduction electrode potentials of three metals A, B and C are +0.5 V, −3.0 V and −1.2 V respectively. The order of reducing powers of these metals is ____________.


Calculate E.M.F. of following cell at 298 K Zn(s) |ZnSO4 (0.01 M)| |CuSO4 (1.0 M)| Cu(s) if \[\ce{E^0_{cell}}\] = 2.0 V.


The reduction potential of a half-cell consisting of nickel electrode in 0.1 M NiSO4 solution at 25°C is ____________.

(E0 = −0.257 V)


Identify the strongest reducing agent from the data given below:

Element `"E"^0 ("V")`
Al −1.66
Fe −0.44
Hg +0.79
Cu +0.337

What is the standard emf of the following cell?

\[\ce{Ni_{(s)} | Ni^{2+}_{( aq)} || Au^{3+}_{( aq)} | Au_{(s)}}\]

if \[\ce{E^0_{Ni}}\] = −0.25 V, \[\ce{E^0_{Au}}\] = 1.50 V.


What is the ΔG0 for the following reaction?

\[\ce{Al_{(s)} + Fe^{3+}_{( aq)} -> Al^{3+}_{( aq)} + Fe_{(s)}}\]; \[\ce{E^0_{cell}}\] = +2.43


For the following cell, standard potential of copper electrode is 0.337 V and standard cell potential is 0.463 V.

\[\ce{Cu | Cu^{2+} (1 M) || Ag^+ (1 M)  Ag}\]

What is the standard potential of silver electrode?


What is the standard potential of cell, Ni | Ni2+ (1M) || Cu2+ (1 M) | Cu?

If E°Cu = 0.337 V and E°Ni = - 0.236 V.


The standard electrode potential of Zn and Ni are - 0.76 V and - 0.25 V respectively. If the reaction takes place in the cell constructed between these two electrodes is spontaneous. What is the standard emf of the cell?


Answer the following in one or two sentences.

What is the standard cell potential for the reaction?

\[\ce{2Al(s) + 3Ni^{2⊕}(1M) -> 2Al^{3⊕}(1 M) + 3Ni(s)}\]

if `"E"_"Ni"^0` = −0.25 V and `"E"_"Al"^0` = −1.66 V


The standard EMF for the cell reaction,
\[\ce{Zn + Cu^{2+} -> Cu + Zn^{2+}}\] is 1.1 volt at 25°C.
The EMF for the cell reaction, when 0.1 M Cu2+ and 0.1 M Zn2+ solutions are used, at 25°C is:


Which element from the following has the highest negative standard reduction potential?


Define standard electrode potential.


Calculate the emf of the following cell at 25°C.

Zn(s)|Zn2+(0.08 M) || Cu2+(0.l M) |Cu(s)

E0zn = − 0.76 V, E0cu = 0.36 V.


Write net cell reaction.


Write the value of `(2.303 RT)/F` in the Nernst equation?


Write the four applications of emf series.


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