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Electrochemistry

Multiple Choice Questions

221. The standard reduction potential values of the three metallic cations, X, Y, Z are 0.52, – 3.03 and - 1.18 V respectively. The order of reducing power of the correspor ding metals is

Y > Z > X
X > Y > Z
Z > Y > X
Z > X > Y

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Short Answer Type

222. How is cell constant related to specific conductance of electrolyte?

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223. Can we store aqueous copper sulphate solution in iron vessel?

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224. Which type of electrolytes are used in salt bridge?

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225. For a half-cell reaction: C₆H₅NO₂ → C₆H₅NH₂. What is the value of n in Nernst equation of electrode potential?

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226. What is the sign for

∆

G for a spontaneous cell reaction?

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227. How can the standard oxidation potential of an electrode be raised up?

Standard Oxidation Potentials. The standard oxidation potential is much like the standard reduction potential. It is the tendency for a species to be oxidized at standard conditions.
it can be raised up by reducing hydrogen value in cell reaction.

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