Advertisements
Advertisements
Question
The oxidation state of Fe in [Fe(CO)5] is ______.
Options
+2
0
+3
+5
Solution
The oxidation state of Fe in [Fe(CO)5] is 0.
Explanation:
The oxidation state of the carbonyl group (CO) is zero.
Let, the oxidation state of Fe be ‘x’
`\implies` x + 5(0) = 0
`\implies` x + 0 = 0
`\implies` x = 0
Thus, the oxidation state of Fe in [Fe(CO)5] is 0.
APPEARS IN
RELATED QUESTIONS
In what way is the electronic configuration of the transition elements different from that of the non-transition elements?
Which metal in the first series of transition metals exhibits +1 oxidation state most frequently and why?
Complete and balance the following chemical equations
`MnO_4^(-) + H_2O + I^(-) ->`
Mention the type of compounds formed when small atoms like H, C and N get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.
The product of oxidation of I– with \[\ce{MnO^{-}4}\] in alkaline medium is:-
Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other in:-
Give reason for the following statement:
[Ti(H2O)]3+ is coloured while [Sc(H2O)6]3+ is colourless.
Consider the following standard electrode potential values:
\[\ce{Fe^{3+}_{ (aq)} + e^- -> Fe^{2+}_{ (aq)}}\], E0 = +0.77 V
\[\ce{MnO^{-4}_{ (aq)} + 8H^+ + 5e^- -> Mn^{2+}_{ (aq)} + 4H2O_{(l)}}\], E0 = +1.51 V
What is the cell potential for the redox reaction?
Account for the following:
Eu2+ with electronic configuration [Xe]4f76s2 is a strong reducing agent.
Give two similarities in the properties of Sc and Zn.
