Coordination Compounds

A magnetic moment of 1.73 BM will be shown by one among the following

1. TiCl4
2. [CoCl6]4-
3. [Cu(NH3)4]2+
4. [Ni(CN)4]2-

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

1. 0.003
2. 0.01
3. 0.001
4. 0.002

Crystal field splitting energy for high spin d4 octahedral complex is

1. -1.2 o
2. -0.6 o
3. -0.8 o
4. -1.6 o

In a particular isomer of [Co(NH3)4Cl2]+, the Cl-Co-Cl angle is 90 , this isomer is known as

1. optical isomer
2. cis-isomer
3. position isomer
4. linkage isomer.

The anion of acetylacetone (acac) forms Co (acac)3 chelate with Co3+. The rings of the chelate are

1. five membered
2. four membered
3. six membered
4. three membered.

The correct IUPAC name for [CrF2(en)2]Cl is

1. chloro difluorido ethylene diaminechromium (III) chloride
2. difluoridobis (ethylene diamine) chromium (III) chloride
3. difluorobis-(ethylene diamine) chromium (III) chloride
4. chloro difluoridobis (ethylene diamine) chromium (III)

Which among the following is a paramagnetic complex?

1. [Co(NH3)6]3+
2. [Pt(en)Cl2]
3. [CoBr4]2-
4. Mo(CO)6

Which is diamagnetic?

1. [Co(F)6]3-
2. [Ni(CN)4]2-
3. [NiCl4]2-
4. [Fe(CN)6]3-

Low spin complex of d6-cation in an octahedral field will have the following energy

1. -125 o + P
2. -125 o + 3P
3. -25 o + 2P
4. -25 o + P

Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of the following statements is not true? [figure]

1. Red complex has a square planar geometry.
2. Complex has symmetrical H-bonding.
3. Red complex has a tetrahedral geometry.
4. Dimethylglyoxime functions as bidentate ligand.