Question

5. Limiting molar conductivity in water is maximum at
298 K for
(1) Mg+2
(3) Na+
(4) K+
(2) H+​

Answer 1

Limiting molar conductivity in water is maximum at

298 K is for (1) Mg+2

The limiting molar conductivity of  is maximum for Mg+2 because limiting molar conductivity increases with decrease in concentration of ions.

Mg+2 has less volume which increases its ionic mobility in aqueous solution.

and therefore it has maximum Limiting molar conductivity in water among the given options.

Answer 2

Limiting molar conductivity in water is maximum at $Mg^+^2$.

Option (1).

Explanation:

• Limiting the Molar conductivity of an electrolyte is the determination of 'molar conductivity' when the 'concentration of the electrolyte' in the solution approaches to 0.

• The number of ions decreases when the solution is diluted or the concentration is decreased.

• Limiting Molar conductivity in water is maximum at 298K is for $Mg^+^2$.

• The limiting molar conductivity increases with a decrease in the concentration of ions.

• It has the highest 'molar conductivity' in water.

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