Chemistry-
General
Easy
Question
Which of the following arrangements does not represent the correct order of the property stated against it?
- Sc < Ti < Cr < Mn : number of oxidation states
- V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviour
- Ni2+ < Co2+ < Fe2+ < Mn2+ : lonic size
- Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solution
The correct answer is: V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviour
The unpaired electrons in Fe2+ ion (four) are less than in Mn2+ ion (five)
\Fe2+ ion is less paramagnetic than Mn2+ ion.
The correct order is :
V2+ < Cr2+ < Fe2+ < Mn2+
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