Practice free Co-ordination Compounds (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
According to Lewis the ligand are
According to Lewis, a ligand is a species that donates a pair of electrons to a metal ion to form a coordination complex. Since ligands donate electron pairs, they are considered Lewis bases. Hence, they are basic in nature.
The coordination number of cobalt in the complex $[Co(en)_2Br_2]cl_2$ ?
The coordination number refers to the number of ligand donor atoms bonded to the central metal ion. In the complex $[Co(en)_2Br_2]Cl_2$, 'en' stands for ethylenediamine, which is a bidentate ligand (each 'en' contributes 2 donor atoms). So, there are 2 'en' ligands contributing 4 donor atoms and 2 bromide ions each contributing 1 donor atom, making a total of 6 donor atoms. Therefore, the coordination number of cobalt in this complex is 6.
Which is the example of hexadentate ligand ?
A hexadentate ligand can form six bonds with a central metal ion. Ethylenediaminetetraacetic acid (EDTA) is an example of a hexadentate ligand as it can donate six pairs of electrons to a metal ion. Therefore, ethylene diammine tetra acetate ion (EDTA) is the correct example of a hexadentate ligand.
Which of the following is tridentate neutral Ligand ?
The primary valency of the metal ion in the coordination compound $K_2[Ni(CN)_4]$ is..
The primary valency of a metal ion in a coordination compound is its oxidation state. In $K_2[Ni(CN)_4]$, the complex ion is $[Ni(CN)_4]^{2-}$ and potassium (K) has a charge of +1. Therefore, the primary valency of nickel (Ni) must be +2 to balance the charge of the complex ion.
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.
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