Question

Molten zinc chloride can be electrolysed.

Describe how this experiment can be carried out in a laboratory, explaining how the products of this electrolysis are formed.


(6) marks

Answer 1

Answer: The products of electrolysis are Zn(l) and
`Cl_2` gas

Step-by-step explanation:

Electrolysis of a subastance is breaking it into its constituents by the action of electrical current.

In the electrolysis of molten zinc chloride, zinc metal is produced at the cathode which is a negative electrode and chlorine gas produces as the anode which is a positive electrode.

`ZnCl_2(l)\rightarrow Zn^(2+)+2Cl^-`

At anode :
`2Cl^-(l)\rightarrow 2e^-+Cl_2(g)`

At cathode :
`Zn^(2+)(l)+2e^-\rightarrow Zn(l)`