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प्रश्न
How would you account for the following: Transition metals form complex compounds.
Account for the following:
Transition metals form a large number of complexes.
Account for the following:
Transition metals form large number of complex compounds.
Give reasons for the following:
Transition elements form complex compounds.
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उत्तर १
The transition elements form complexes because they are able to accept pairs of electrons from donor molecules or ions to form dative covalent bonds. This happens because they have vacant orbitals of suitable energy which can accept the non-bonding pairs from the ligands.
उत्तर २
The transition elements form complexes because of the following reasons:
- Comparatively smaller size of their metal ions.
- Their high ionic charges.
- Availability of vacant d-orbitals so that these orbitals can accept lone pairs of electrons donated by the ligands.
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संबंधित प्रश्न
Account for the following:
E° value for the Mn3+/Mn2+ couple is much more positive than that for Cr3+/Cr2+.
Complete and balance the following chemical equations
`Fe^(2+) + MnO_4^(-) + H^+ ->`
Explain why Zn2+ salts are white whereas Cu2+ salts are coloured.
Electronic configuration of Mn2+ is ____________.
The magnetic nature of elements depends on the presence of unpaired electrons. Identify the configuration of transition element, which shows highest magnetic moment.
Match the catalysts given in Column I with the processes given in Column II.
| Column I (Catalyst) | Column II (Process) |
| (i) \[\ce{Ni}\] in the presence of hydrogen | (a) Zieglar Natta catalyst |
| (ii) \[\ce{Cu2C12}\] | (b) Contact process |
| (iii) \[\ce{V2O5}\] | (c) Vegetable oil to ghee |
| (iv) Finely divided iron | (d) Sandmeyer reaction |
| (v) \[\ce{TiCl4 + Al (CH3)3}\] | (e) Haber's Process |
| (f) Decomposition of KCIO3 |
Identify the metal and justify your answer.
Carbonyl \[\ce{M(CO)5}\]
The basic character of transition metals monoxide follow the order.
Which property of transition metals enables them to behave as catalysts?
Explain the use of different transition metals as catalysts.
