Explanation
CH3MgI is an organometallic compound due to carbon-metal bond. i.e., C—Mg bond
Equation – 1 - reaction is unfavorable in the forward direction (K2O is unstable, while Li2O is stable).
Equation – 2 is balanced correct and obtained the correct product.
Equation – 3 is not balanced w.r.t. charge.
Equation – 4 is not balanced w.r.t. charge.
Optical isomers are possible for both tetrahedral and octahedral complexes, but not square planar. Here in [CO(NH3)3 (NO2)3], shows both facial and meridonal isomerism. So, it will not show optical isomerism.
According to the given condition , the complex formed in the reaction is [Fe(NH3)4·Cl2]Cl . The IUPAC name is Tetraammine dichloroferrum (III) chloride
Potash alum K2SO4.Al2(SO4)3.24H2O is a double salt.
K4[Fe(CN)6 ionoises to give 4 +1 = 5 ions
[Cr(H2O)6]3+ has Cr3+ ion with 3 unpaired electrons in 3d orbitals.
Free metals posses zero oxidation state.
O.N of Cu in [Cu(NH3)4]SO4 is + 2.
[Cu(NH3)4]2+ complex is deep blue.
[MCl2Br2]SO4 gives [MCl2BrSO4]Br and [MClBr2SO4]Cl as ionization isomers and also cis and trans geometrical isomers are expected.
It is a disubstituted complex and will show cis and trans isomers.
In M (CO)4, M is bonded to M ‒ C ≡ O
EAN of Cu in [Cu(NH3)4]SO4 is EAN = 29 ‒ 2 + 4 ×2 = 35
Ni(CO)4 has d10 electrons in 3d orbitals and thus zero unpaired electron.
cis –trans two geometrical iosmers are possible.
In [Fe(H2O)5 NO]SO4, Fe is in +1 oxidation state.
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