The coordination number of cobalt in[Co(en)₂Br₂]Cl₂ is:

1. 2

2. 4

3. 6

4. 8

Atomic number of Cr and Fe are respectively 24 and 26 which of the following is paramagnetic with the spin of electron?

1. [Cr(CO)₆]

2. [Fe(CO)₅]

3. [Fe(CN)₆]^4-

4. [Cr(NH₃)₆]³⁺

Which compound among the following does not exhibit paramagnetism?

1. [Cu(NH₃)₄]Cl₂

2. FeO

3. NO

4. N₂O₄

The correct IUPAC name of AlCl₃(EtOH)₄ is:

1. Aluminium (II)Chloride-4-ethanol

2. Aluminium (III)Chloride-4-ethanol

3. Aluminium (IV)Chloride-4-hydroxy ethane

4. Aluminium Chloride-4-ethanol

The complex with a square planar shape and dsp² hybridization among the following is:

1. [Ni(CN)₄]^2-

2. [Cu(NH₃)₄]²⁺

3. [PtCl₄]^2-

4. All of these

Glycinato ligand is :

1. 

2. bidentate ligand

3. two donor sites N and O^-

4. all of the above

The correct name of the compound [Cu(NH₃)₄](NO₃)₂, according to IUPAC system is:

1. cuprammonium nitrate

2. tetraamminecopper(II)dinitrate

3. tetraamminecopper(II)nitrate

4. tetraamminecopper(I)dinitrate

The ionization isomer of [Cr(H₂O)₄Cl(NO₂)]Cl is:

Among [Ni(CO)₄],[Ni(CN)₄]^2-, [NiCl₄]^2- species, the hybridisation states of the Ni atom are, respectively (At. no. of Ni=28)

1. sp³,dsp².dsp²

2. sp³,dsp²,sp³

3. sp³,sp³,dsp²

4. dsp²,sp³,sp³

The compound that will exhibit maximum ionic conductivity in aqueous solution is: 

1. K₄[Fe(CN)₆]

2. [Co(NH₃)₆]Cl₃

3. [Cu(NH₃)₄]Cl₂

4. [Ni(CO)₄]