Question

Which of the following electrolytic solutions has the least specific conductance ?

• A. $0.02\, N$
• B. $0.2\, N$
• C. $2\,N$
• D. $0.002\, N$

Answer 1

Answer: (D)

$0.002\, N$

Answer 2

Specific conductance is defined as the conductance of one centimeter cube (cc) of the solution of an electrolyte. Upon dilution, the concentration of ions per $cc$ decreases, so the specific conductance falls. Thus, specific conductance $\propto$ concentration of electrolytes, hence specific conductance is least for the solution of $0.002 N$ concentration.