In the following transition metals, the maximum number of oxidation states are exhibited by

Options

A. chromium (Z=24)
B. manganese (Z=25)
C. Iron(Z=26)
D. titanium (Z=22)

Answer

B

Explanation

Manganese shows maximum number of oxidation states because it has 5 unpiared electrons in 3d and also contains 2 electrons in 4s sub-shell.
`+2+3+4+5+6+7`
Other given metals show the following oxidation states
`Cr=+2+3+4+5+6`
`Fe=+2+3`
Ti `=+2+3+4`