Question

Correct the following statement

Lead bromide conducts electricity.

Answer 1

The correct statement is:

Molten Lead bromide conducts electricity.

• As a solid, it is a non-conductor of electricity since its ions are not free but held together by strong electrostatic forces of attraction. hence, When the key is closed, no current flows if lead bromide is in the solid-state.
• However, in a fused or molten state, the ions become mobile and hence conduct electricity.

${\mathrm{PbBr}}_2\left(\mathrm{l}\right)\to {\mathrm{Pb}}^{2+}\left(\mathrm{l}\right)+2{\mathrm{Br}}^{-}\left(\mathrm{l}\right)$