Advertisements
Advertisements
Questions
Explain the following, giving two examples:
Coordination entity
Explain with two examples of the following:
Coordination entity
Advertisements
Solution
A coordination entity constitutes a central metal atom or ion bonded to a fixed number of ions or molecules. For example, [CoCl3(NH3)3] is a coordination entity in which the cobalt ion is surrounded by three ammonia molecules and three chloride ions. Other examples are [Ni(CO)4], [PtCl2(NH3)2], [Fe(CN)6]4−, [Co(NH3)6]3+.
APPEARS IN
RELATED QUESTIONS
Write IUPAC names of the following compounds
Write IUPAC names of the following compounds:
Write structures of compounds A, B and C in of the following reactions
Following compounds are given to you :
2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane
1) Write the compound which is most reactive towards SN2 reaction.
2) Write the compound which is optically active.
3) Write the compound which is most reactive towards β-elimination reaction.
Write the IUPAC name of the following coordination compound:
[Cr(NH3)4(H2O)2]Cl3
Write the IUPAC name of the following coordination compound:
[PtCl2(NH3)4][PtCl4]
Ligand (en) is an example of ___________.
In which of the following compounds the oxidation state of the nickel atom is 0?
A coordination compound \[\ce{CrCl3.4H2O}\] precipitates silver chloride when treated with silver nitrate. The molar conductance of its solution corresponds to a total of two ions. Write structural formula of the compound and name it.
Match the coordination compounds given in Column I with the central metal atoms given in Column II and assign the correct code:
| Column I (Coordination Compound) | Column II (Central metal atom) |
| A. Chlorophyll | 1. rhodium |
| B. Blood pigment | 2. cobalt |
| C. Wilkinson catalyst | 3. calcium |
| D. Vitamin B12 | 4. iron |
| 5. magnesium |
Match the compounds given in Column I with the oxidation state of cobalt present in it (given in Column II) and assign the correct code:
| Column I (Compound) | Column II (Oxidation state of Co) |
| A. \[\ce{[Co(NCS)(NH3)5](SO3)}\] | 1. + 4 |
| B. \[\ce{[Co(NH3)4 CL2]SO4}\] | 2. 0 |
| C. \[\ce{Na4[Co(S2O3)3]}\] | 3. + 1 |
| D. \[\ce{[Co2(CO)8]}\] | 4. + 2 |
| 5. + 3 |
Which one of the following does not achieve an octet of electrons in the central atom?
The most stable ion is ______.
The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of CoCl3.4NH3 is ______. (Round off to the Nearest Integer).
The one that will show optical activity is: (en = ethane 1, 2-diamine)
Explain with two examples of the following:
Ligand
Explain the following, giving two examples:
Coordination polyhedron
What is meant by ambidentate ligand?
Give two examples of ambidentate ligands.
