Which of the following complexes have a maximum number of unpaired ele – McqOptions

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1.	Which of the following complexes have a maximum number of unpaired electrons?
A.	\[[Ni{{\left( CO \right)}_{4}}]\]
B.	\[{{[Co{{\left( N{{H}_{3}} \right)}_{4}}{{\left( N{{O}_{2}} \right)}_{2}}]}^{+}}\]
C.	\[{{\left[ Ag{{\left( CN \right)}_{2}} \right]}^{-}}\]
D.	\[{{\left[ CuB{{r}_{4}} \right]}^{2-}}\]
Answer» E.

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