question_answer

The highest electrical conductivity among the following aqueous solutions, is of

A)  0.1 M difluoroacetic acid

B)  0.1 M fluoroacetic acid

C)  0.1 M chloroacetic acid

D)  0.1 M acetic acid

Correct Answer: A

Solution :

 Fluoro group causes negative inductive effect,  thus increasing ionisation, hence 0.1 M difluoroacetic acid has highest electrical conductivity.