Electrochemistry

Given below is the plot of the molar conductivity vs $\sqrt{\text { concentration }}$ for KCl in aqueous solution. If, for the higher concentration of KCl solution, the resistance of the conductivity cell is $100…

Consider the following electrochemical cell at standard condition. \(\begin{aligned} & \mathrm{Au}(\mathrm{s})\left|\mathrm{QH}_2, \mathrm{Q}\right| \mathrm{NH}_4 \mathrm{X}(0.01 \mathrm{M})| | \mathrm{Ag}^{+}(1…

$1$ Faraday electricity was passed through $\mathrm{Cu}^{2+}(1.5$ $\mathrm{M}, 1 \mathrm{~L}) / \mathrm{Cu}$ and $0.1$ Faraday was passed through $\mathrm{Ag}^{+}(0.2 \mathrm{M}, 1 \mathrm{~L}) / \mathrm{Ag}$…

For lead storage battery pick the correct statements A. During charging of battery, $\mathrm{PbSO}_{4}$ on anode is converted into$\mathrm{PbO}_{2}$ B. During charging of battery, $\mathrm{PbSO}_{4}$ on cathode is…

For the reaction $2\mathrm{Fe}^{3+}(\mathrm{aq})+2I^{-}(\mathrm{aq})\rightarrow\,2\mathrm{Fe}^{2+}(\mathrm{aq})+I_{2}(s)$ the magnitude of the standard molar free energy change,…

These are physical properties of an element (A) Sublimation enthalpy (B) Ionisation enthalpy (C) Hydration enthalpy (D) Electron gain enthalpy The total number of above properties that affect the reduction potential is…

Following figure shows dependence of molar conductance of two electrolytes on concentration. $\Lambda\,_{m}^{0}$ is the limiting molar conductivity. The number of Incorrect statement(s) from the following is _____ (A)…

$E_{\mathrm{Cu}^{2+}|\mathrm{Cu}}^{0}=+0\operatorname{.34}\,V$ $E_{\mathrm{Zn}^{2+}|\mathrm{Zn}}^{0}=-0\operatorname{.76}\,V$ Identify the incorrect statement from the options below for the above cell:

The number of correct statements from the following is ___________ (A) Conductivity always decreases with decrease in concentration for both strong and weak electrolytes. (B) The number of ions per unit volume that…

$\mathrm{Emf}$ of the following cell at $298K$ in $V$ is $x\times\,10^{-2}$ $\mathrm{Zn}\left|\mathrm{Zn}^{2+}\left(0.1M\right)\parallel\,\mathrm{Ag}^{+}\left(0.01M\right)\right|\mathrm{Ag}$ The value of $x$…

Consider the cell at $25^{\circ}C$…

Consider the following two half-cell reactions along with the standard reduction potential given: $CO_2 + 6H^+ + 6e^- \rightarrow CH_3 OH + H_2 O \quad E^{\circ}_{red} = 0.02$ V $\dfrac{1}{2} O_2 + 2H^+ + 2e^-…