MHT CET Medical202622 April 2026Evening ShiftChemistryElectrochemistryActual
0.1 M solution of an electrolyte A ^+ B ^- placed in a conductivity cell with electrodes 4 cm apart and each with cross-section area equal to 2 cm ^2 was found to have a resistance of 200 . What is molar conductivity of the solution?
Options
- A100 ⁻¹ cm ^2
- B250 ⁻¹ cm ^2
- C0.250 ⁻¹ cm ^2
- D400 ⁻¹ cm ^2
Correct answer
A. 100 ⁻¹ cm ^2
Step-by-step solution
Cell constant G^* = l A G^* = 4 2 = 2 cm ⁻¹ Conductivity = 1 R G^* = 1 200 2 = 0.01 ⁻¹ cm ⁻¹ Molar conductivity _m = 1000 C _m = 0.01 1000 0.1 = 100 ⁻¹ cm ^2 mol ⁻¹ Answer: 100 ⁻¹ cm ^2