Given below are two statements: Statement I: The limiting molar conductivity of KCl (strong electrolyte) is higher…
Electrochemistry · Class 12 · JEE Main Previous Year Question
Given below are two statements:
Statement I: The limiting molar conductivity of KCl (strong electrolyte) is higher compared to that of (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:
- a
Statement I is false but Statement II is true
- b
Both Statement I and Statement II are true
- c
Statement I is true but Statement II is false
- d✓
Both Statement I and Statement II are false
Both Statement I and Statement II are false
Strategy: Evaluate the statements using Kohlrausch's law and the general laws of electrolytic conductan\ce.
Statement I: The limiting molar conductivity () for () is actually significantly higher than that of () mainly due to the extremely high mobility of ions. So, Statement I is False.
Statement II: Molar conductivity increases as concentration decreases (dilution). The statement says it "decreases", which is incorrect. So, Statement II is False.
Conclusion: Both statements are false.
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