Li+ has a smaller ionic mobility than K+ because of the:
Correct answer: B. Greater degree of hydration of Li+
- A. Larger size of Li+
- B. Greater degree of hydration of Li+
- C. Larger radius to charge ratio of Li+
- D. Smaller nuclear charge of Li+
Explanation
The correct answer is B) Greater degree of hydration of Li+. Because Li+ ions are smaller, they attract more water molecules, leading to a greater degree of hydration. This results in increased drag and thus lower ionic mobility compared to K+ ions. Option A is incorrect because Li+ is smaller than K+, not larger. Option C is incorrect because Li+ has a smaller radius to charge ratio, leading to higher charge density, not lower mobility. Option D is incorrect because nuclear charge does not directly affect ionic mobility in solution.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electrochemistry
Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
Practise Electrochemistry
696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrochemistry questions
Which of the following is not conductor of electricity?
The process of decomposition of an electrolyte in solution or molten state by the passage of electric current is called electrolysis? All of the following statements about products as a result of electrolysis are correct EXCEPT:
In FeCI3 the oxidation state of Cl is:
All of the following are characteristics properties of electrolytic cell EXCEPT:
When there is more than one cations in the aqueous solution of an electrolyte, the ions discharge at the cathode can he predicted from the reactivity order of elements given in the electrochemical series. Which of the following is correct decreasing order of discharge of positive ions at cathode?
Which of the following is correct decreasing order of discharge of negative ions on the anode electrode in case of electrolysis of mixture of electrolytes?