Solutions of two electrolytes 'A' and 'B' are diluted. The Lamda_(m) of 'B' increases 1.5 times while that of A increases 25 times. Which of the two is a strong electrolyte ? Justify your answer.

Solutions of two electrolytes 'A' and 'B' are diluted. The Lamda_(m) o

1.	Solutions of two electrolytes 'A' and 'B' are diluted. The Lamda_(m) of 'B' increases 1.5 times while that of A increases 25 times. Which of the two is a strong electrolyte ? Justify your answer.
Answer» Solution :* Electrolyte .B. is strong as on dilution the number of ions remains the same, only interionic attraction decreases THEREFORE increase in `Lamda_(m)` is small. * Electrolyte B is strong electrolyte with respect to electrolyte A. * Electrolyte A is strong, so it gives complete ionization and no dilution, there no significant CHANGE is OBSERVED so, in value of `Lamda_(m)` there will be less difference. * Electrolyte B is weak, so it does not give complete ionization and on dilution, significant change is observed in number of ions. so, its `Lamda_(m)` value drastically increases (25 times) on dilution. These difference in the value of `Lamda_(m)` is due to increase in the distance between INTER ions which decrease in interionic attaction. "strong electrolyte gives less increase in `Lamda_(m)` on dilution."