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Select Correct Statement from following regarding t-block elements
(i) A bsorption spectrum of lanthanoids(III) is largely dependent on nature of ligands.
(ii) Magnetic moments of lanthanoids (III) is generally greater than corresponding actinides (III)
(iii) Spectra of Heavier actinides (III) ions show resemblance with lanthanoids (III) ions
(iv) Ce3+ ion is colourless in aqueous medium.
The correct answer is
  • a)
    I, II, III, IV
  • b)
    I, II, III
  • c)
    II, III,IV
  • d)
    III, IV
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Select Correct Statement from following regarding t-block elements(i) ...
Due to deep buried nature of 4f orbitals, spectrum is largely independent on nature of ligands.
Due to some orbital quenching in case of actinoids. magnetic moment is less as compared to Lanthanoids.
Due to poor exposure of 5f-orbitals in heavier actinoids. their spectrum is similar to that of Lanthanoids Ce3+ show f-d transition which lies in UV region hence colourless.
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Select Correct Statement from following regarding t-block elements(i) A bsorption spectrum of lanthanoids(III) is largely dependent on nature of ligands.(ii) Magnetic moments of lanthanoids (III) is generally greater than corresponding actinides (III)(iii) Spectra of Heavier actinides (III) ions show resemblance with lanthanoids (III) ions(iv) Ce3+ion is colourless in aqueous medium.The correct answer isa)I, II, III, IVb)I, II, IIIc)II, III,IVd)III,IVCorrect answer is option 'C'. Can you explain this answer?
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Select Correct Statement from following regarding t-block elements(i) A bsorption spectrum of lanthanoids(III) is largely dependent on nature of ligands.(ii) Magnetic moments of lanthanoids (III) is generally greater than corresponding actinides (III)(iii) Spectra of Heavier actinides (III) ions show resemblance with lanthanoids (III) ions(iv) Ce3+ion is colourless in aqueous medium.The correct answer isa)I, II, III, IVb)I, II, IIIc)II, III,IVd)III,IVCorrect answer is option 'C'. 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 Select Correct Statement from following regarding t-block elements(i) A bsorption spectrum of lanthanoids(III) is largely dependent on nature of ligands.(ii) Magnetic moments of lanthanoids (III) is generally greater than corresponding actinides (III)(iii) Spectra of Heavier actinides (III) ions show resemblance with lanthanoids (III) ions(iv) Ce3+ion is colourless in aqueous medium.The correct answer isa)I, II, III, IVb)I, II, IIIc)II, III,IVd)III,IVCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select Correct Statement from following regarding t-block elements(i) A bsorption spectrum of lanthanoids(III) is largely dependent on nature of ligands.(ii) Magnetic moments of lanthanoids (III) is generally greater than corresponding actinides (III)(iii) Spectra of Heavier actinides (III) ions show resemblance with lanthanoids (III) ions(iv) Ce3+ion is colourless in aqueous medium.The correct answer isa)I, II, III, IVb)I, II, IIIc)II, III,IVd)III,IVCorrect answer is option 'C'. Can you explain this answer?.
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