Electrolytic Cells and Electrolysis

On electrolysis of an aqueous solution of $\mathrm{NaCl}$, the products released at cathode and anode are, respectively

Copper sulphate solution (250 mL) was electrolysed using a platinum anode and a copper cathode. A constant current of 2 mA was passed for 16 minutes. It was found that after electrolysis the absorbance of the solution was reduced to 50% of its original value. The concentration of copper sulphate in the solution at the beginning would be:

Electrolysis of a solution of $MnS{O}_4$ in aqueous sulphuric acid is a method for the preparation of $Mn{O}_2$ as per the reaction:

${\text{Mn}}_{\text{aq}}^{2+}+2{\text{H}}_2\text{O}⟶{\text{MnO}}_{2\left(\text{s}\right)}+2{\text{H}}_{\left(\text{aq}\right)}^{+}+{\text{H}}_{2\left(\text{g}\right)}$

Passing a current of 27 A for 24 hours gives only 1 kg of $Mn{O}_2.$ The value of current efficiency would be: $\left({\text{M}}_{{\text{MnO}}_2}=86.9\text{g}\right)$

In the electrolytic cell, flow of electrons is from:

In the electrolytic cell, flow of electrons is from 

The method of using electricity to split molecules is called

Which of the following metals are obtained by electrolysis of their chlorides in molten state?

(1) Na                (2) Ca 

(3) Fe                 (4) Cu

A platinum electrode is an reactive electrode. 

What are the composition of the electrodes?

Name the different types of electrodes?

An Arrhenius _____ is a substance that dissociates in water to form hydroxide $\left({\mathrm{OH}}^{-}\right)$ ions.

_____ theory for the dissociation of electrolytes states that acids are substances that dissociate in water to yield electrically charged atoms or molecules, called ions.

Write limitations of Arrhenius theory of electrolytic dissociation.

Explain the Arrhenius theory for the dissociation of electrolytes.

In electrochemical cell, oxidation and reduction occurs at

Which of the following statements is not applicable to electrolytic conductors?

Aqueous solution of which of the following compounds is the best conductor of electric current?

Which of the following is an incorrect statement: