MCQ
Electrolysis is due to the $.......$ effect of electric current.
  • Chemical.
  • B
    Heating.
  • C
    Mechanical.
  • D
    None.

Answer

Correct option: A.
Chemical.
Electrolysis is an electro$-$chemical process in which current is passed between two electrodes through an ionized solution $($electrolyte$)$ to deposit positive ions $($anions$)$ on the negative electrode $($cathode$)$ and negative ions $($cations$)$ on the positive electrode $($anode$).$
So we can say that electrolysis is due to the chemical effect of electric current.

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$\underset{(A)}{\mathop{\begin{matrix}
   \,\,\,\,\,Ph\,\,\,\,C{{H}_{3}}  \\
   |\,\,\,\,\,\,\,\,\,\,|\,\,  \\
   Ph-C-C-C{{H}_{3}}  \\
   |\,\,\,\,\,\,\,\,\,\,|\,\,\,  \\
   \,OH\,\,\,OH  \\
\end{matrix}}}\,+\underset{(B)}{\mathop{\begin{matrix}
   \,\,\,\,Ph\,\,\,Et  \\
   \,\,|\,\,\,\,\,\,\,\,\,|  \\
   Ph-C-C-Et  \\
   \,\,|\,\,\,\,\,\,\,\,\,|  \\
   \,\,\,\,\,OH\,\,OH  \\
\end{matrix}}}\,\xrightarrow{{{H}_{2}}S{{O}_{4}}}$

 

$(p)$ $\begin{matrix}
   Ph\,\,\,\,\,O\,  \\
   |\,\,\,\,\,\,\,\,||\,\,  \\
   Ph-C-C-C{{H}_{3}}  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}\,\,\,\,\,\,\,\,  \\
\end{matrix}$                                $(q)$ $\begin{matrix}
   \,Ph\,\,\,\,\,O\,  \\
   \,\,|\,\,\,\,\,\,\,\,||  \\
   Ph-C-C-Et  \\
   |\,\,\,\,\,\,\,\,\,\,  \\
   Et\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}$

$(r)$ $\begin{matrix}
   \,Ph\,\,\,\,\,O\,  \\
   |\,\,\,\,\,\,\,\,\,\,||\,  \\
   Ph-C-C-C{{H}_{3}}  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   Et\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}$                             $(s)$ $\begin{matrix}
   \,\,\,Ph\,\,\,\,\,O\,  \\
   \,\,|\,\,\,\,\,\,\,\,||  \\
   Ph-C-C-Et  \\
   |\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}\,\,\,\,  \\
\end{matrix}$

When $(A)$ and $(B)$ reacts with $H_2SO_4$ products obtained are

$\text{Phenol }\underset{\text{Distillation}}{\mathop{\xrightarrow{Zn}}}\,A\underset{\text{Conc}\text{. }HN{{O}_{3}}}{\mathop{\xrightarrow{\text{Conc}\text{. }{{H}_{2}}S{{O}_{4}}}}}\,B\underset{NaOH}{\mathop{\xrightarrow{Zn}}}\,C$   

In the above reaction  $A, B$  and $C $  are the following compounds

A solution of potassium ferrocyanide would contains ...... ions