Coordination Compounds · Question 49

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.

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

1. [Ni(NH3)6]2+
2. [Zn(NH3)6]2+
3. [Cr(NH3)6]3+
4. [Co(NH3)6]3+

Which of the following carbonyls will have the strongest C–O bond?

1. Cr(CO)6
2. Fe(CO)5
3. [Mn(CO)6]+
4. [V(CO)6]-

Which of the following complex compounds will exhibit highest paramagnetic behaviour? (At. No. Ti = 22, Cr = 24, Co = 27, Zn = 30)

1. [Cr(NH3)6]3+
2. [Co(NH3)6]3+
3. [Zn(NH3)6]2+
4. [Ti(NH3)6]3+