Question

Give reasons for the following:

Hint:

For weak electrolytes, \(\alpha=\frac{\Lambda_m}{\Lambda_m^\circ}\). Salt bridge prevents charge build-up in half-cells.

Answer 1

Step 1:
This is the introductory statement for the sub-parts below.
Step 2: Sub-parts.
(I) Mercury cells deliver constant voltage because ionic concentrations do not change during discharge.
(II) Salt bridges maintain electrical neutrality between half-cells.
\[ \boxed{\text{Refer to sub-parts (I) and (II) for the complete answers.}} \]