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The metal which forms polynuclear carbonyl is ?
Manganese (Mn) is known to form polynuclear carbonyl complexes, such as $[Mn_2(CO)_{10}]$. Polynuclear carbonyls are complexes where more than one metal atom is bonded to carbonyl (CO) ligands.
Potasssium ferrocyanide is a.... .
Potassium ferrocyanide, $K_4[Fe(CN)_6]$, is a complex salt. It consists of a central metal ion (Fe) surrounded by cyanide ligands. Complex salts contain a complex ion, which is a metal ion bonded to one or more ligands. In this case, the ferrocyanide ion $[Fe(CN)_6]^{4-}$ is the complex ion.
Given the molecular formula of the hexa coordinated complexes. (A) $Co Cl_3 6NH_3 $ (B) $ Co Cl_3 5NH_3 $ (C) $ Co Cl_3 4NH_3$ If the number of coordinated $NH_3$ molecudes in A,B and C respectively are 6,5 and 4 the primary valency (A), (B) and (C) are:
For the given complexes, the primary valency corresponds to the oxidation state of the central metal ion, which is also the number of chloride ions balancing the charge. For $CoCl_3 ext{ }6NH_3$, $CoCl_3 ext{ }5NH_3$, and $CoCl_3 ext{ }4NH_3$, the primary valency is 3 for each, as Co is in the +3 oxidation state in all these complexes. Therefore, the primary valencies are 3, 3, and 3 respectively.
In the compound lithium tetrahydroaluminate the ligand is:
In lithium tetrahydroaluminate, $Li[AlH_4]$, the ligand is $H^-$ (hydride ion). The compound consists of a lithium ion and a complex anion $[AlH_4]^-$, where aluminum is bonded to four hydride ions. Hydride ions are $H^-$, which act as ligands in this context.
Which of the following is the odd one out.
Ferrous ammonium sulphate (FAS) is the odd one out as it is a double salt, whereas the other compounds listed are coordination compounds. Potassium ferrocyanide, potassium ferricyanide, and tetrammine copper (II) sulphate are all coordination compounds with complex ions.
Ligand in complex compounds
In complex compounds, a ligand is an ion or molecule that donates a pair of electrons to the central metal atom or ion to form a coordinate covalent bond. Therefore, ligands are electron pair donors.
Which of the following is a common donor atom in ligands ?
Common donor atoms in ligands include nitrogen (N) and oxygen (O). These atoms often have lone pairs of electrons that they can donate to the central metal atom or ion in a coordination complex. Therefore, both nitrogen and oxygen are common donor atoms.
Finely divided iron combines with CO to give
Finely divided iron combines with carbon monoxide (CO) to form iron pentacarbonyl, $Fe(CO)_5$. This can be remembered as a specific reaction where iron and CO form a stable coordination complex.
Zeigler-Natta catalyst is used for which type of reaction.
The Ziegler-Natta catalyst is used in the polymerization of alkenes to produce polymers like polyethylene and polypropylene. This catalyst allows for the control of the polymer structure and molecular weight.
Number of ions present in aqueous solution of $Fe_4 [Fe(CN)_6]_3 $ is
The compound $Fe_4[Fe(CN)_6]_3$ dissociates in water to produce 4 $Fe^{3+}$ ions and 3 $[Fe(CN)_6]^{4-}$ ions. The total number of ions in solution is 4 + 3 = 7. Therefore, the correct option is 7 ions. Hence, option o3 is correct.
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