coordination Chemistry

Which is true for hexaaminecobalt(III) chloride?

• sp3d2,paramagnetic

• d2sp3, dimagnetic

• sp32, diamagnetic

• d2sp3,paramagnetic

The correct IUPAC name of [Pt(NH3)2C1] is-

• Diamminedichloridoplatinum (II)

• Chloronitrito-N-ammineplatinum (II)

• Diamminechloridonitrito-N-platinum (II)

• Diamminechloronitrito-N platinate (II)

Among [Ni(CO)4], [Ni(CN)41², [NiC141²-species, the hybridisation states at the Ni atom are, respectively

• sp³, dsp², dsp²

  ]

• (b) sp³, dsp², sp3

• (c) sp³, sp³, dsp²

• (d) (Atomic number of Ni = 28)

  dsp², sp³, sp3

  3 A]

The correct statement with respect to the complexes Ni(CO)4 and [Ni(CN)41²- is

• nickel is in the same oxidation state in both

• have tetrahedral and square planar geometry

  respectively

• (c) both have square planar geometry

• have square planar and tetrahedral geometry

  on respectively (e) have tetrahedral and square planar geometry

  . respectively

The ligand N(CH₂CH₂NH₂)3 is

• tridentate

• pentadentate

• tetradentate

• bidentate

• hexadentate

The complex which has the highest magnetic moment among the following is-

• [CoF61³

• [Co(NH3)]³+

• [Ni(CN)41²

• [Fe(CN)614

Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl-, CN- and H₂O, respectively, are

• Octahedral, tetrahedral and square planar

• Tetrahedral, square planar and octahedral

• Square planar, tetrahedral and octahedral

Which of the following facts about the complex [Cr(NH3)6]Cl3 is wrong?

• The complex is paramagnetic

• The complex is an outer orbital complex

• The complex gives white precipitate with

  silver nitrate solution

• The complex involves d²sp³ hybridization and is octahedral in shape.

Which of the following shall form an octahedral complex?

• d4 (low spin)

• d8(high spin)

• d6 (low spin)

• all of these.

When 1 mol CrCl3.6 H₂O is treated with excess of AgNO3, 3 mol of AgCl are obtained. The formula of the complex is-

• [CrCl3 (H₂O)3].3 H₂O

• [CrCl₂(H₂O)4]CI.2 H₂O

• [CrCl(H₂O)5]Cl₂.H₂O

• [Cr(H₂O)6] Cl3