Chemical BondingHard
Question
Which of the following arrangements does not represent the correct order of the property stated against it ?
Options
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
Solution
V2+ = [Ar] 
Cr2+ = [Ar]
Mn2+ = [Ar]
Fe2+ = [Ar]
Correct order of Paramagnetic behaviour
Mn2+ > Fe2+ = Cr2+ > V2+
Cr2+ = [Ar]
Mn2+ = [Ar]
Fe2+ = [Ar]
Correct order of Paramagnetic behaviour
Mn2+ > Fe2+ = Cr2+ > V2+
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