Question

Which of the following solutions has the least value of conductivity?

a) 0.01M Na2SO4

b) 0.01M NaCl

c) 0.01M CH3COOH

d) 0.01M HCl

Answer 1

Answer : c) 0.01M CH3COOH

Explanation :

The conductivity of solution depends upon the dissociation of ions or strength of ions. Strong electrolyte dissociate nearly 100 % whereas weak electrolyte dissociate partially. Strong electrolyte dissociate more ions which increases the conductivity of the solution. 

Among them CH3COOH is weak electrolyte which dissociate partially as compared to others having same concentration. Remaining all are strong electrolytes.

c) 0.01M CH3COOH