Electrodes and Electrochemical Series

The negative terminal of electrochemical cell is

The gas liberated at the cathode is
 

Anode in the galvanic cell is:

When an aqueous solution of ${\mathrm{CuCl}}_2$ is electrolysed using Pt inert electrodes, the reaction at cathode and anode respectively are

The following facts are available :-

$2 {\mathrm{A}}^{-}+{\mathrm{B}}_2⟶2 {\mathrm{B}}^{-}+{\mathrm{A}}_2$

$2{\mathrm{C}}^{-}+{\mathrm{B}}_2⟶$ No reaction

$2{\mathrm{D}}^{-}+{\mathrm{A}}_2⟶2 {\mathrm{A}}^{-}+{\mathrm{D}}_2$

Which of the following statement is correct ?

Which of the following statements is/are true for an electrochemical cell?

For the given cell: $\mathrm{Mg} \overline{){\mathrm{Mg}}^{2+}\parallel {\mathrm{Cu}}^{2+}\overline{) \mathrm{Cu}}}$
 

In a galvanic cell, which one of the following statement is not correct?

100 mL, $0.05M\mathrm{\text{CuS}}{O}_4$ solution is electrolysed by using current of $0.965A$ for 1000 sec. Calculate the pH of the solution at the end of electrolysis is

Among the following identify the reaction that will not take place at cathode.

Among the following, which reaction take place at anode?

What is value of ${\mathrm{E}}_{{\mathrm{S}}^{2-}\left|\mathrm{CuS}\right|\mathrm{Cu}\mathrm{ }}^{\circ }$ if  ${\mathrm{E}}_{\mathrm{C}{\mathrm{u}}^{2+}}^{\mathrm{o}}|\mathrm{ }\mathrm{C}\mathrm{u}=0.34$ and ${\mathrm{K}}_{\mathrm{sp}}$ of $\mathrm{C}\mathrm{u}\mathrm{S}={10}^{–35}$

What will happen if dil. ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4$ is electrolysed between Pt electrode?

In the chemical reaction:

${\mathrm{Ag}}_2\mathrm{O}+{\mathrm{H}}_2\mathrm{O}+2{\mathrm{e}}^{-}⟶2\mathrm{Ag}+2{\mathrm{OH}}^{-}$

How many of the following can be used as electrodes in batteries?

Zinc, Zinc-mercury amalgam, Lead, Graphite.

Cotyledons are also called-

The electrode potential, $\mathrm{E}°$ , for the reduction of $\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}$ to $\mathrm{M}{\mathrm{n}}^{2+}$ in acidic medium is +1.51 V. Which of the following metal(s) will be oxidised? The reduction reactions and standard electrode potentials for $\mathrm{Z}{\mathrm{n}}^{2+},\mathrm{A}{\mathrm{g}}^{+}$ and $\mathrm{A}{\mathrm{u}}^{+}$ are given as

$\mathrm{Z}{\mathrm{n}}_{\left(\mathrm{a}\mathrm{q}\right)}^{2+}+2{\mathrm{e}}^{-}\to \mathrm{Z}{\mathrm{n}}_{\left(\mathrm{s}\right)},\mathrm{E}°=-0.762\mathrm{V}$

$\mathrm{A}{\mathrm{g}}_{\left(\mathrm{a}\mathrm{q}\right)}^{+}+{\mathrm{e}}^{-}\rightleftharpoons \mathrm{A}{\mathrm{g}}_{\left(s\right)},\mathrm{E}°=+0.80\mathrm{V}$

$\mathrm{A}{\mathrm{u}}_{\left(\mathrm{a}\mathrm{q}\right)}^{+}+{\mathrm{e}}^{-}\rightleftharpoons \mathrm{A}{\mathrm{u}}_{\left(\mathrm{s}\right)},\mathrm{E}°=+1.69\mathrm{V}$

In the electrochemical reaction of which set of reactants, metal displacement will not take place?

If an element $A$ is placed in an electrochemical series above element $B$ but below element $C,$ then the order of oxidation power of elements is

Which of the following concentration cells will produce maximum $E_{\mathrm{\text{cell}}}$ at 298 K. [Take $p_{H_2}$ = 1.0 atm in each case.]