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  • Which of the following arrangements does not represent the correct order of the property stated against it ?Option: 1 <img alt="Sc < Ti < Cr l

Which of the following arrangements does not represent the correct order of the property stated against it ?

Option: 1

Sc < Ti < Cr < Mn:      number of oxidation states


Option: 2

V^{2+} < Cr^{2+} < Mn^{2+} < Fe^{2+} : paramagnetic behaviour


Option: 3

Ni^{2+}<Co^{2+}<Fe^{2+}<Mn^{2+}: ionic size


Option: 4

Co^{3+}<Fe^{3+}<Cr^{3+}<Sc^{3+}: stability in aqueous solution


Answers (1)

best_answer

I_{ons}                                          unpaired electrons

V^{2+}                                                 3

Cr^{2+}                                               4

Mn^{2+}                                           5

Fe^{2+}                                              4          

Paramegnetic character increases on increasing number of unpaired electrons.

 

Posted by

manish painkra

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