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

For ${\mathrm{Zn}}^{2+}/\mathrm{Zn}, \mathrm{E}°=-0.76 \mathrm{V}$, for ${\mathrm{Ag}}^{+}/\mathrm{Ag}, \mathrm{E}°=0.799 \mathrm{V}$. The correct statement is:

$4.5 \mathrm{g}$ of aluminium (atomic mass $27 \mathrm{amu})$ is deposited at cathode from ${\mathrm{Al}}^{3+}$ solution by a certain quantity of electric charge. The volume of hydrogen produced at $\mathrm{STP}$ from ${\mathrm{H}}^{+}$ ions in solution by the same quantity of electric charge will be.

If one end of a piece of a metal is heated, the other end becomes hot after some time. This is due to

If $0.01 \mathrm{M}$ solution of an electrolyte has a resistance of $40 \mathrm{ohms}$ in a cell having a cell constant of $0.4 {\mathrm{cm}}^{-1}$, its molar conductance in $\mathrm{ohm}{}^{-1} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}$ will be

Molar conductivity of a solution is $1.26\times {10}^2 {\mathrm{ohm}}^{-1} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}$. Its molarity is $0.01 \mathrm{M}.$ Its specific conductivity in ${\mathrm{ohm}}^{-1} {\mathrm{cm}}^{-1}$ will be

The conductivity of a saturated solution of ${\mathrm{BaSO}}_4$ is $3.06\times {10}^{-6} \mathrm{ohm}{}^{-1} {\mathrm{cm}}^{-1}$ and its equivalent conductance is $1.53 {\mathrm{ohm}}^{-1} {\mathrm{cm}}^2 {\mathrm{equiv}}^{-1}$. The ${\mathrm{K}}_{\mathrm{sp}}$ for ${\mathrm{BaSO}}_4$ will be

Molar ionic conductivities of two-bivalent electrolytes ${\mathrm{x}}^{2+}$ and ${\mathrm{y}}^{2-}$ are $57$ and $73$, respectively. The molar conductivity of the solution formed by them will be

Equivalent conductances of $\mathrm{NaCl}, \mathrm{HCl}$ and ${\mathrm{CH}}_3\mathrm{COONa}$ at infinite dilution are $126.45, 426.16$ and $91 {\mathrm{ohm}}^{-1} {\mathrm{cm}}^2 {\mathrm{eq}}^{-1}$ , respectively. The equivalent conductance of ${\mathrm{CH}}_3\mathrm{COOH}$ at infinite dilution would be