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In the reaction : Cu(s) + 2Ag⁺(aq) → Cu²⁺(aq) + Ag(s). The reduction half cell reaction is

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

A gas X at 1 atm is bubbled through a solution containing a mixture of 1MY⁻ and 1MZ⁻ at 25^oC. If the reduction potential is Z > Y > X, then

The standard reduction potentials at 298 K for the following half reactions are given against each

In electrolysis of NaCl when Pt electrode is taken then H₂ is liberated at cathode while with Hg cathode, it forms sodium amalgam. This is because

Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox titration. Some half- cell reactions and their standard potentials are given below:

Conductivity (unit seamen’s S) is directly proportional to area of the vessel and the concentration of the solution in it and is inversely proportional to the length of the vessel, then the unit of constant of proportionality is