22545.Which of the following has an optical isomer?
[Co(NH3)3Cl]+
[Co(en)(NH3)2]2+
[Co(H2O)4(en)]3+
[Co(en)2(NH3)2]3+
22546.The number of unidentate ligands in the complex ionis called
EAN
Coordination number
primary valency
oxidation number
22547.Which one of the following complex ions has geometrical isomers?
[Cr(NH3)4(en)]3+
[Co(en)3]3+
[Ni(NH3)5Br]+
[Co(NH3)2(en)2]3+
22548.The IUPAC name of the complex [Co(NH3)4Cl2]Cl is
dichloro tetraammine cobalt (III) chloride
tetraammine dichloro cobalt (III) chloride
tetraammine dichloro cobalt (II) chloride
tetraammine dichloro cobalt (IV) chloride
22550.Among the following metal carbonyls, C—O bond order is lower in
[Mn(CO)6]+
[Fe(CO)5]
[Cr(CO)6]
[V(CO)6]–
22554.Which one of the following has an optical isomer? (en = ethylenediamine)
[Zn(en)(NH3)2]2+
[Co(en)3]3+
[Co(H2O)4(en)]3+
[Zn(en)2]2+
22555.The value of the ‘spin only’ magnetic moment for one of the following configurations is 2.84 BM. The correct one is
d4 (in strong ligand filed)
d4 (in weak ligand field)
d3 (in weak as well as in strongfields)
d5 (in strong ligand field)
22556.An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be
0.001
0.002
0.003
0.01
22558.Which compound is zero valent metal complex?
[Cu(NH3)4]SO4
[Pt(NH3)2Cl2]
[Ni(CO)4]
K3[Fe(CN)6]
22560.Which kind of isomerism is exhibited by octahedral Co(NH3)4Br2Cl?
Geometrical and ionisation
Geometrical and optical
Optical and ionisation
Geometrical only
22561.Which one of the following has a square planar geometry? (At. Nos. Co = 27, Ni = 28, Fe = 26, Pt = 78)
[CoCl4]2–
[FeCl4]2–
[NiCl4]2–
[PtCl4]2–
22562.Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour? (At. No. Cr = 24, Mn = 25, Fe = 26, Co = 27)
[Cr(CN)6]3–
[Mn(CN)6]3–
[Fe(CN)6]3–
[Co(CN)6]3–
22564.Which of the following compounds shows optical isomerism?
[Cu(NH3)4]2+
[ZnCl4]2–
[Cr(C2O4)3]3–
[Co(CN)6]3–