Q. Which one of the following solutions will have highest conductivity?
A) 0.1 M ${CH}_{3}$ COOH
B) 0.1 M NaCl
C) 0.1 M ${KNO}_{3}$
D) 0.1 M HCl
Explanation
(d)
$NaCl,\ {KNO}_{3},\ HCl$ are strong electrolytes but the size of $H^{+}$ is smallest. Smaller the size of the ions, greater is the conductance and hence greater is the conductivity
$(\kappa\ = \ C\ \times \ cell\ constant).\$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.