General
✓✗The number of possible ionisation isomers (including itself) of [Co(NH3)5Cl]SO4 is
- 3
- 1
- 2
- 4
General
✓✗An isomer of CrCl3·6H2O, written as [Cr(H2O)6−nCln]Cl3−n·nH2O, gives 1 mol of AgCl per mole with excess AgNO3. The value of n is
- 2
- 3
- 1
- 0
General
✓✗Which of the following complexes shows both geometrical and optical isomerism?
- [CoCl2(en)2]+
- [Co(en)3]3+
- [Co(NH3)3Cl3]
- [Co(NH3)4Cl2]+
General
✓✗When a ligand name already contains a numerical prefix, as in ethane-1,2-diamine, the number of such ligands is indicated by
- di-, tri-, tetra-
- hemi-, sesqui-
- bis-, tris-, tetrakis-
- mono-, di-, tri-
General
✓✗A metal ion M2+ forms an octahedral complex with a weak field ligand having a spin-only moment of 4.90 BM, and with a strong field ligand it forms a diamagnetic complex. M2+ is
- Ni2+
- Fe2+
- Mn2+
- Co2+
General
✓✗Assertion: CO is a strong field ligand.
Reason: CO forms only a σ bond with the metal.
Reason: CO forms only a σ bond with the metal.
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion
- Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- Assertion is true but Reason is false
- Both Assertion and Reason are false
General
✓✗Among the following complexes, the one which shows zero crystal field stabilisation energy (CFSE) is
- [Mn(H2O)6]3+
- [Co(H2O)6]3+
- [Fe(H2O)6]3+
- [Co(H2O)6]2+
General
✓✗Back donation of metal d electrons into the π* orbital of CO
- strengthens the M−C bond and weakens the C−O bond
- strengthens both bonds
- weakens the M−C bond only
- weakens both M−C and C−O bonds
General
✓✗The total number of stereoisomers (geometrical plus optical) of an octahedral complex of the type [MA2B2C2] is
- 5
- 6
- 4
- 8
General
✓✗The IUPAC name of K[Ag(CN)2] is
- potassium argentocyanide
- potassium dicyanidoargentate(I)
- potassium dicyanidosilver(I)
- potassium dicyanidoargentate(II)
General
✓✗The spin-only magnetic moment of [Ni(NH3)6]2+ is
- 1.73 BM
- 2.83 BM
- 4.90 BM
- 0 BM
General
✓✗[Co(NH3)5Cl]2+ absorbs at about 535 nm and [Co(NH3)6]3+ at about 475 nm. Which statement is correct?
- Both have the same Δo
- [Co(NH3)6]3+ has the larger Δo
- [Co(NH3)5Cl]2+ has the larger Δo
- Δo cannot be compared from these data
General
✓✗Which of the following ligands produces the largest crystal field splitting?
- H2O
- NH3
- Cl−
- CO
General
✓✗Ethylenediaminetetraacetate ion is a/an
- ambidentate ligand
- hexadentate ligand
- monodentate ligand
- bidentate ligand
General
✓✗The anion of acetylacetone (acac) forms the chelate Co(acac)3 with Co3+. The rings of the chelate are
- four-membered
- six-membered
- five-membered
- three-membered