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प्रश्न
Which of the following species cannot act as a ligand? Give reason.
विकल्प
OH−
`"NH"_4^+`
CH3NH2
H2O
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उत्तर
`bb("NH"_4^+)`
Explanation:
Because it is unable of providing a core metal ion with a lone pair of electrons.
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संबंधित प्रश्न
Explain the following, giving two examples:
Coordination entity
Which of the following compounds is used as a semipermeable membrane?
(a) Potassium ferrocyanide
(b) Potassium argentocyanide
(c) Sodium meta aluminate
(d) Copper ferrocyanide
Write structures of compounds A, B and C in of the following reactions
Write structures of compounds A and B of the following reaction :
Which of the following complexes are homoleptic?
(i) \[\ce{[Co(NH3)6]^{3+}}\]
(ii) \[\ce{[Co(NH3)4 Cl2]^{+}}\]
(iii) \[\ce{[Ni(CN)4]^{2-}}\]
(iv) \[\ce{[Ni(NH3)4Cl2]}\]
Which of the following complexes are heteroleptic?
(i) \[\ce{[Cr(NH3)6]^{3+}}\]
(ii) \[\ce{[Fe(NH3)4]Cl2]^+}\]
(iii) \[\ce{[Mn(CN)6]^{4-}}\]
(iv) \[\ce{[Co(NH3)4]Cl2]}\]
Match the complex ions given in Column I with the colours given in Column II and assign the correct code:
| Column I (Complex ion) | Column II (Colour) |
| A. \[\ce{[Co(NH3)6]^{3+}}\] | 1. Violet |
| B. \[\ce{[Ti(H2O)6]^{3+}}\] | 2. Green |
| C. \[\ce{[Ni(H2O)6]^{2+}}\] | 3. Pale blue |
| D. \[\ce{(Ni(H2O)4 (en)]^{2+} (aq)}\] | 4. Yellowish orange |
| 5. Blue |
The co-ordinate number and the oxidation state of the element E in the complex [E(en)2(C2O4)]NO2 are respectively?
What is a chelate complex?
What is meant by the chelate effect? Give an example.
