When concentration approaches zero, the molar conductivity is known as limiting molar conductivity and represented by `Λ_M^0`. Which of the following is correct order of molar conductiivity at infinite dilution ?
| A. |
LiCl > KCl > NaCl |
| B. |
KCl > NaCl > LiCl |
 |
| C. |
LiCl > NaCl > KCl |
| D. |
NaCl > KCl > LiCl |
Conductivity of ionic salt depends upon ionic mobility and ionic mobility depends upon size of ions in aqueous solution smaller hydrated ion has larger value of ionic mobility, hence higher value of molar conductivity. Hydrated radii of Li, Na and K are as follows `Li^+ > Na^+ > K^+` \ Molar conductivity at infinite dilution is correct ordered in option (b)