Chemistry Exam > Chemistry Questions > Which of the following statements are true fo...
Start Learning for Free
Which of the following statements are true for the lanthanides:
(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.
(II) Lanthanide oxides are predominantly acidic in nature.
(III) The stability of Sm(II) is due to its half-filled sub-shell
(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer is
(II) Lanthanide oxides are predominantly acidic in nature.
(III) The stability of Sm(II) is due to its half-filled sub-shell
(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer is
- a)I and IV
- b)I and II
- c)I and III
- d)II and III
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Which of the following statements are true for the lanthanides:(I) The...
True Statements about Lanthanides:
I. Magnetic Moment of Eu3
- The observed magnetic moment of Eu3 at room temperature is higher than that calculated from spin-orbit coupling.
- This is due to the presence of an unpaired electron in the 4f orbital of Eu3.
IV. Separation of Lanthanide(III) Ions by Ion Exchange Chromatography
- Lanthanide(III) ions can be separated by ion exchange chromatography.
- This is because the ionic radius of the lanthanide(III) ions is similar, but their charge density varies.
- This difference in charge density can be exploited to separate them using ion exchange chromatography.
False Statements about Lanthanides:
II. Acidity of Lanthanide Oxides
- Lanthanide oxides are predominantly basic in nature.
- This is because they have a high affinity for oxygen, and their oxides readily react with water to form hydroxides.
III. Stability of Sm(II)
- The stability of Sm(II) is not due to its half-filled sub-shell.
- It is due to the fact that Sm(II) has a fully-filled 4f sub-shell, which stabilizes its divalent state.
I. Magnetic Moment of Eu3
- The observed magnetic moment of Eu3 at room temperature is higher than that calculated from spin-orbit coupling.
- This is due to the presence of an unpaired electron in the 4f orbital of Eu3.
IV. Separation of Lanthanide(III) Ions by Ion Exchange Chromatography
- Lanthanide(III) ions can be separated by ion exchange chromatography.
- This is because the ionic radius of the lanthanide(III) ions is similar, but their charge density varies.
- This difference in charge density can be exploited to separate them using ion exchange chromatography.
False Statements about Lanthanides:
II. Acidity of Lanthanide Oxides
- Lanthanide oxides are predominantly basic in nature.
- This is because they have a high affinity for oxygen, and their oxides readily react with water to form hydroxides.
III. Stability of Sm(II)
- The stability of Sm(II) is not due to its half-filled sub-shell.
- It is due to the fact that Sm(II) has a fully-filled 4f sub-shell, which stabilizes its divalent state.
|
Explore Courses for Chemistry exam
|
|
Similar Chemistry Doubts
Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer?
Question Description
Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer?.
Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemistry.
Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free.
Here you can find the meaning of Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following statements are true for the lanthanides:(I) The observed magnetic moment of Eu3+ at room temperature is higher than that calculated form spin-orbit coupling.(II) Lanthanide oxides are predominantly acidic in nature.(III) The stability of Sm(II) is due to its half-filled sub-shell(IV) Lanthanide(III) ions can be separated by ion exchange chromatography Correct answer isa)I and IVb)I and IIc)I and IIId)II and IIICorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Chemistry tests.
|
|
Explore Courses for Chemistry exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup