Q. An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to
A) Increase in number of ions
B) Increase in ionic mobility of ions
C) 100% ionisation of electrolyte at normal dilution
D) Increase in both i.e. number of ions and ionic mobility of ions
Explanation
[Solution from source] A strong electrolyte is already fully ionised, so dilution does not add ions. Dilution weakens interionic attractions, so the ions move faster: the increase is due to greater ionic mobility. More ions is the explanation for weak electrolytes. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.