Question

D.C. cannot be used to measure the electrical conductivity of an electrolytic solution because it causes ______ effect.

Answer 1

D.C. cannot be used to measure the electrical conductivity of an electrolytic solution because it causes polarisation effect.

Explanation:

Direct current (D.C.) leads to continuous movement of ions in one direction, causing electrolysis and chemical changes at the electrodes, which interferes with accurate conductivity measurement.