Redox Reactions And Electrochemistry Ques 744

Question: The largest oxidation number exhibited by an element depends on its outer electronic configuration. With which of the following outer electronic configurations the element will exhibit largest oxidation number-

Options:

A) $ 3d^{1}4s^{2} $

B) $ 3d^{3}4s^{2} $

C) $ 3d^{3}4s^{1} $

D) $ 3d^{5}4s^{2} $

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Maximum oxidation state ford-block elements $ ~=(n-1) $ unpaired $ d{{e}^{-}}+ns{{e}^{-}} $ For $ 3d^{5},4s^{2} $ configuration Maximum oxidation number $ =5+2=7 $



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