MCQ
Amongst the following electrodes the one with zero electrode potential is
  • A
    Calomel electrode
  • Standard hydrogen electrode
  • C
    Glass electrode
  • D
    Gas electrode

Answer

Correct option: B.
Standard hydrogen electrode
b
(b)Standard hydrogen electrode have zero electrode potential.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The decreasing order of reactivity of above compound towards  $\mathop {Na}\limits^ \oplus  \mathop O\limits^\ominus  Me$ is
Which of the following is most reactive toward $S_{N^2}$ reaction ?
Which of the following is used in fire extinguishers
Which product is obtained when bleaching powder is distilled with acetone :
Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group ?
$\begin{array}{*{20}{c}}
  {\,\,C{H_{3\,\,\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C = C{H_2}\xrightarrow[{{R_2}{O_2}}]{{HBr}}X\xrightarrow{{C{H_3}ONa}}Y\,;} 
\end{array}$

$X$ and $Y$ are

Major product is :
In electrochemical corrosion. the metal undergoing corrosion:
Consider the following reaction

$\mathrm{MnO}_2+\mathrm{KOH}+\mathrm{O}_2 \rightarrow \mathrm{A}+\mathrm{H}_2 \mathrm{O} .$

Product ' $A$ ' in neutral or acidic medium disproportionate to give products ' $\mathrm{B}$ ' and ' $\mathrm{C}$ ' along with water. The sum of spin-only magnetic moment values of $B$ and $C$ is . . . . . .$BM$. (nearest integer)

(Given atomic number of $\mathrm{Mn}$ is $25$ )

For the electrochemical cell, $Mg ( s )\left| Mg ^{2+}( aq , 1 M ) \| Cu ^{2+}( aq , 1 M )\right| Cu ( s )$ the standard emf of the cell is $2.70 V$ at $300 K$. When the concentration of $Mg ^{2+}$ is changed to $x$, the cell potential changes to $2.67 V$ at $300 K$. The value of $x$ is.

(given, $\frac{ F }{ R }=11500 K V ^{-1}$, where $F$ is the Faraday constant and $R$ is the gas constant, The value of $\ln (10)=2.30$ )