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Which of the following arrangements does not represent the correct order of the property stated against it ?
  • a)
    V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviour
  • b)
    Ni2+ < Co2+ < Fe2+ < Mn2+ : ionic size
  • c)
    Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solution
  • d)
    Sc < Ti < Cr < Mn : number of oxidation states
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following arrangements does not represent the correct ord...
hence the correct order of paramagnetic behaviour
V2+ < Cr2+ = Fe2+ < Mn2+
(2) For the same oxidation state, the ionic radii generally decreases as the atomic number increases in a particular transition series. hence the  order is Mn++ > Fe++ > Co++ > Ni++
(3) In solution, the stability of the compounds depends upon electrode potentials, SEP of the transitions metal ions are given as
Co3+ / Co = + 1.97, Fe3+ / Fe = + 0.77 ; Cr3+ / Cr2+ = – 0.41, Sc3+ is highly stable as it does not show + 2 O. S.
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Which of the following arrangements does not represent the correct order of the property stated against it ?a)V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviourb)Ni2+ < Co2+ < Fe2+ < Mn2+ : ionic sizec)Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solutiond)Sc < Ti < Cr < Mn : number of oxidation statesCorrect answer is option 'A'. Can you explain this answer?
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Which of the following arrangements does not represent the correct order of the property stated against it ?a)V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviourb)Ni2+ < Co2+ < Fe2+ < Mn2+ : ionic sizec)Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solutiond)Sc < Ti < Cr < Mn : number of oxidation statesCorrect answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following arrangements does not represent the correct order of the property stated against it ?a)V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviourb)Ni2+ < Co2+ < Fe2+ < Mn2+ : ionic sizec)Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solutiond)Sc < Ti < Cr < Mn : number of oxidation statesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following arrangements does not represent the correct order of the property stated against it ?a)V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviourb)Ni2+ < Co2+ < Fe2+ < Mn2+ : ionic sizec)Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solutiond)Sc < Ti < Cr < Mn : number of oxidation statesCorrect answer is option 'A'. Can you explain this answer?.
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