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.