Advertisements
Advertisements
प्रश्न
The oxidation state of Fe in [Fe(CO)5] is ______.
पर्याय
+2
0
+3
+5
Advertisements
उत्तर
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
संबंधित प्रश्न
How would you account for the following: Transition metals form complex compounds.
Compare the stability of +2 oxidation state for the elements of the first transition series.
Use Hund’s rule to derive the electronic configuration of Ce3+ ion and calculate its magnetic moment on the basis of ‘spin-only’ formula.
Write down the number of 3d electrons in the following ion:
Cu2+
Indicate how would you expect the five 3d orbitals to be occupied for this hydrated ions (octahedral).
Which one of the following ions is coloured?
Transition metals with highest melting point is ____________.
Match the properties given in Column I with the metals given in Column II.
| Column I (Property) | Column II (Metal) | |
| (i) | Element with highest second ionisation enthalpy |
(a) \[\ce{Co}\] |
| (ii) | Element with highest third ionisation enthalpy |
(b) \[\ce{Cr}\] |
| (iii) | \[\ce{M}\] in \[\ce{M(CO)6}\] is | (c) \[\ce{Cu}\] |
| (iv) | Element with highest heat of atomisation |
(d) \[\ce{Zn}\] |
| (e) \[\ce{Ni}\] |
Match List - I with List - II.
| List - I | List - II | ||
| (A) | [Fe(CN)6]3− | (i) | 5.92 BM |
| (B) | [Fe(H2O)6]3+ | (ii) | 0 BM |
| (C) | [Fe(CN)6]4− | (iii) | 4.90 BM |
| (D) | [Fe(H2O)6]2+ | (iv) | 1.73 BM |
Choose the correct answer from the options given below.
Give a reason for the following:
Transition metals possess a great tendency to form complex compounds.
‘Spin only’ magnetic moment is the same for which of the following ions?
- Ti3+
- Cr2+
- Mn2+
- Fe2+
- Sc3+
Choose the most appropriate answer from the options given below:
