Solutions of three electrolytes have the same ionic strength and different dielectric constants as 4 , 25 and 81 . The corresponding relative magnitude of Debye-Huckel screening, lengths of the three solutions are
(a)4, 25 and 81
(b)2, 5 and 9
(c)$1 / 2,1 / 5$ and $1 / 9$
(d)1, 1 and 1
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
The Debye length is proportional to √ε at fixed ionic strength: √4 : √25 : √81 = 2 : 5 : 9.