How many moles of electrons are required for the reduction of $3 \ mol$ of ions of $Zn^{2+}$ to $Zn_{(s)}$?

Which of the following is a property of a solution of dry hydrogen chloride in dry methylbenzene?

In the process of electrolysis,the current is carried out inside the electrolyte by

What products are formed during the electrolysis of a concentrated aqueous solution of $NaCl$?
$I. Cl_{2(g)}$
$II. NaOH_{(aq)}$
$III. H_{2(g)}$

During the electrolysis of an aqueous solution of $NaBr$ using inert electrodes,what are the products formed?

Describe the method of obtaining chlorine from brine (sea water) and write the oxidation-reduction reactions,specifying the products at the anode and cathode.