Embibe Experts Solutions for Chapter: Electrochemistry, Exercise 1: Exercise

Which of the following solutions is used as an anti-rusting solution?

Equivalent conductance and molar conductance of ${\mathrm{Fe}}_2{\left({\mathrm{SO}}_4\right)}_3$ are related by the equation,

Given:

i.    $\mathrm{A}+{\mathrm{e}}^{-}\to {\mathrm{A}}^{-}$; ${\mathrm{E}}^0=0.92 \mathrm{V}$

ii.   $\mathrm{D}+2{\mathrm{e}}^{-}\to {\mathrm{D}}^{2-}$; ${\mathrm{E}}^0=0.32 \mathrm{V}$

iii.  ${\mathrm{B}}^{2+}+2{\mathrm{e}}^{-}\to \mathrm{B}$; ${\mathrm{E}}^0=-2.70 \mathrm{V}$

iv.   $\mathrm{E}\to {\mathrm{E}}^{2+}+2{\mathrm{e}}^{-}$; ${\mathrm{E}}^0=+0.54 \mathrm{V}$

Which of the following combinations will give the highest cell potential ($\mathrm{EMF}$)?

Increase in temperature decreases the conductivity of metallic conductors. Give a reason.

Explain the conductance behaviour of weak electrolytes.

Define standard oxidation potential?

Give reason for ${\mathrm{E}}^{\circ }$ value for $({\mathrm{Mn}}^{+2}/\mathrm{Mn})$ is negative whereas for $({\mathrm{Cu}}^{+2}/\mathrm{Cu})$ is positive.

Give two points of differences between electrochemical and electrolytic cells.