Resistance of a conductivity cell filled with 0.1 mol L^–1 KCl solution is 100 Ω. If the resistance of the same cell when filled with 0.02 mol L^–1 KCl solution is 520 Ω. The conductivity of 0.1 mol L^–1 KCl solution is 1.29 S/m. The molar conductivity of 0.02 mol L^–1 KCl solution is-

1. 134 S cm² mol^–1
2. 124 S cm² mol^–1
3. 144 S cm² mol^–1
4. 154 S cm² mol^–1

The electrical resistance of a column of 0.05 mol L^–1 NaOH solution of diameter 1 cm and length 50 cm is 5.55 × 10³ ohm.

The molar conductivity of the NaOH solution is-

1. 235.4 S cm² mol^–1
2. 229.6 S cm² mol^–1
3. 217.8 S cm² mol^–1
4. 232.2 S cm² mol^–1