NEET2018ChemistryElectrochemistryActual
If molar conductivity of Ca ²⁺ and Cl ⁻ ions are 119 and 71 Sm ^2 ~mol ⁻¹ respectively, then the molar conductivity of CaCl ₂ at infinite dilution is
Options
- A215 ~S ~cm ^2 ~mol ⁻¹
- B340 ~S ~cm ^2 ~mol ⁻¹
- C126 ~S ~cm ^2 ~mol ⁻¹
- D261 ~S ~cm ^2 ~mol ⁻¹
Correct answer
D. 261 ~S ~cm ^2 ~mol ⁻¹
Step-by-step solution
Given, array r ^ Ca ²⁺=119 ~S ~cm ^2 ~mol ⁻¹ ^ Cl ⁻=71 ~S ~cm ^2 ~mol ⁻¹ array As we know that, array ll & ^ CaCl ₂= _ Ca ^2+ ^ +2 ^ _ Cl ⁻ & ^ CaCl ₂=119+2 71 & ^ CaCl ₂=261 ~S ~cm ^2 ~mol ⁻¹ array