In the plot of molar conductivity ( ∧ m ) vs square root of concentration ( c 1 / 2 ) , following curves are obtained for two electrolytes A and B : Answer the following : What happens on extrapolation of ∧ m to concentration approaching zero for electrolytes A and B ?

On extrapolation, for electrolyte, A limiting value of conductance is obtained that is conductance at zero concentration or infinite dilution. However, the conductance of a weak electrolyte never approaches a limiting value. Or in other words, it is not possible to find conductance at infinite dilution (zero concentration).

HARD

Earn 100

Who was the Viceroy of India when Mahatma Gandhi launched the Quit India Movement?

50% studentsanswered this correctly

Important Questions on Current Electricity

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

The molar conductivity of a

0.5 mol {dm}^{- 3}

solution of

A g N O_{3}

with electrolytic conductivity of

5.76 \times 10^{- 3} S c m^{- 1}

298 K

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

In the plot of molar conductivity $(\land_{m})$ vs square root of concentration $(c^{1 / 2})$ , following curves are obtained for two electrolytes A and B :

Question Image

Answer the following :
Predict the nature of electrolytes A and B.

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

The resistance of a conductivity cell containing

0.01 MKCl

solution at

298 K

1750 Ω

. If the conductivity of

0.01 MKCl

solution at

298 K

0.152 \times 10^{- 3} S {cm}^{- 1}

, then the cell constant of the conductivity cell is____

\times 10^{- 3} {cm}^{- 1}

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

Give reason: Conductivity of

{CH}_{3} COOH

decreases on dilution.

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

Which of the following electrolytic solution has the least specific conductance

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

KCl

solution of conductivity

0.14 S m^{- 1}

shows a resistance of

4.19 Ω

in a conductivity cell. If the same cell is filled with an

HCl

solution, the resistance drops to

1.03 Ω

. The conductivity of the HCl solution is ____

\times 10^{- 2} S m^{- 1}

. (Round off to the Nearest Integer).

MEDIUM

Physics>Electricity and Magnetism>Current Electricity>Wheatstone Bridge

In the plot of molar conductivity $(\land_{m})$ vs square root of concentration $(c^{1 / 2})$ , following curves are obtained for two electrolytes A and B :

Question Image