Question

Given below are two statements:

Statements I: The limiting molar conductivity of KCl (strong electrolyte) is higher compared to that of CH₃COOH (weak electrolyte).

Statement II: Molar conductivity decreases with decrease in concentration of electrolyte.
In the light of the above statements, choose the most appropriate answer from the options given below:

विकल्प

• Statement I is false but statement II is true.

• Both Statement I and statement II are true.

• Both Statement I and statement II are false.

• Statement I is true but statement II is false.

Answer 1

Both Statement I and statement II are false.

Explanation:

Statement (I) is false: KCl's limiting molar conductivity is not greater than CH₃COOH's.

From standard table	`"^"_("CH"_3"COOH")^0`	>	`"^"_("KCl")^0`
^0(cm2/mole)	390.7		149.3

Statement (II) is False: On decreasing the concentration of an electrolyte, the value of molar conductivity does not decreases. On dilution the concentration of electrolyte decreases which increases the degree of dissociation of an electrolyte and thus the number of ions will increase and hence molar conductance increases.