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The increase in equivalent conductivity ...

The increase in equivalent conductivity of a weak electrolyte with dilution is due to :

A

increase in ionic mobility of ions

B

100% ionisation of electrolyte at normal dilution

C

increase in both , i.e. number of ions and ionic mobility of ions

D

increase in number of ions

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Key Idea `lambda_(eq)=kxxV=(kxx1000)/("Normality")`.
On dilution, the number of current carrying particles per `cm^(3)` decreases but the volume of solution increase. Consequently, the ionic mobility increase, which in turn increases the equivalent conductance of strong electrolyte.
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