Advertisements
Advertisements
Question
Assertion: Λm for weak electrolytes shows a sharp increase when the electrolytic solution is diluted.
Reason: For weak electrolytes degree of dissociation increases with dilution of solution.
Options
Both assertion and reason are true and the reason is the correct explanation of assertion.
Both assertion and reason are true and the reason is not the correct explanation of assertion.
Assertion is true but the reason is false.
Both assertion and reason are false.
Assertion is false but reason is true.
Solution
Both assertion and reason are true and the reason is the correct explanation of assertion.
Explanation:
Weak electrolytes dissociate partially in concentrated solution. On dilution, their degree of dissociation increases hence their Am increases sharply.
APPEARS IN
RELATED QUESTIONS
Resistance of conductivity cell filled with 0.1 M KCl solution is 100 ohms. If the resistance of the same cell when filled with 0.02 M KCl solution is 520 ohms, calculate the conductivity and molar conductivity of 0.02 M KCl solution. [Given: Conductivity of 0.1 M KCl solution is 1.29 S m-1 .]
Why conductivity of an electrolyte solution decreases with the decrease in concentration ?
Why does the conductivity of a solution decrease with dilution?
How can you determine limiting molar conductivity, 0 m for strong electrolyte and weak electrolyte?
Molar conductivity denoted by the symbol Λm is related to the conductivity of the solution by the equation (k is the conductivity and c is the concentration).
\[\ce{Λ^0_m}_{(NH_4OH)}\] is equal to ______.
When acidulated water (dil.H2SO4 solution) is electrolysed, will the pH of the solution be affected? Justify your answer.
An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to :-
Which of the following increases with the increase in the concentration of the solution?
The solution of two electrolytes A and B are diluted. ^m of B increases 1.5 times while that of A increases 25 times. Which of the two is a strong electrolyte? Give a reason.
