14th Oct Electrochemistry Quiz 6 – Punjab Meritorious School Preparation Portal

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Kohlrausch's law states that at:

finite dilution, each ion makes definite contribution to equivalent conductance of an electrolyte, whatever be the nature of the other ion of the electrolyte.

infinite dilution each ion makes definite contribution to equivalent conductance of an electrolyte depending on the nature of the other ion of the electrolyte.

infinite dilution, each ion makes definite contribution to conductance of an electrolyte whatever be the nature of the other ion of the electrolyte.

infinite dilution, each ion makes definite contribution to equivalent conductance of an electrolyte, whatever be the nature of the other ion of the electrolyte.

Specific conductance of 0.1 M HNO₃ is 6.3×10^-2 The molar conductance of the solution is

Specific conductance of a 0.1 N KCl solution at 23°C is 0.012ohm^-1cm^-1. Resistance of cell containing the solution at same temperature was found to be 55ohm^-1. The cell constant is

If 0.01 M solution of an electrolyte has a resistance of 40 ohms in a cell having a cell constant of 0.4 cm^-1, then its molar conductance in ohm^-1 cm² mol^-1is

The unit of equivalent conductivity is

217.5

390.7

552.7

517.2

The resistance of 0.01 N solution of an electrolyte was found to be 220ohm at 298 K using a conductivity cell with a cell constant of 0.88cm^-1The value of equivalent conductance of solution is

The resistance of 1 N solution of acetic acid is 250ohm, when measured in a cell of cell constant 0.15cm^-1 The 5-equivalent conductance (inohm^-1cm²equiv-¹) of 1 N acetic acid will be

4.6

9.2

18.4

0.023

A 0.5 M NaOH solution offers a resistance of 31.6 ohm in a conductivity cell at room temperature. What shall be the approximate molar conductance of this NaOH solution if cell constant of the cell is 0.367 cm^-1

An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to:

increase in ionic mobility of ions

100% ionisation of electrolyte at normal dilution

increase in both i.e. number of ions and ionic mobility of ions

increase in number of ions

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