Which of the following compounds exhibit geometrical isomerism?

1. [Pt(NH₃)₂Cl₂ ]

2. [Zn(NH₃)₂Cl₂ ]

3. [Pt(NH₃)₃Cl]

4. All of the above

$\mathrm{\pi }$ bonding is not involved in

1. Ferrocene

2. Dibenzene Chromium

3. Zeise’s Salt

4. Grignard Feagent

The co-ordination number of Fe in Ferrocene is

1. 2

2. 5

3. 6

4. 10

[Fe(H₂O)₆]³⁺ and [Fe(CN)₆]^3- differ in:

1. Magnetic nature

2. Oxidation number

3. Co-ordination number

4. Structure

The number of geometrical isomers possible for a square planar complex ${\left[\mathrm{Mabcd}\right]}^{\pm \mathrm{n}}$ are

EAN of Fe in K₃[Fe(CN)₆] is

1. 34

2. 35

3. 36

4. 37

Which of the following is not an ambidentate ligand?

1. ${\mathrm{CN}}^{-}$

2. ${\mathrm{NO}}_2^{-}$

3. ${\mathrm{SCN}}^{-}$

4. ${\mathrm{NH}}_3$

[Cr(en)₂Br₂ ]⁺ can show

1. Optical isomerism

2. Geometrical isomerism

3. Both (1) and (2) 

4. Neither (1) nor (2)

The coordination number of copper in cuprammonium sulphate is

The IUPAC name of $\left[\mathrm{Co}\left(\mathrm{ONO}\right){\left({\mathrm{NH}}_3\right)}_5\right]{\mathrm{Cl}}_2$ is 

1.  Pentamminenitrocobalt(II)chloride

2.  Pentamminenitrsoocobalt(III)chloride  

3. Pentaaminenitrito -O-cobalt(III)chloride.  

4. Pentammineoxo-nitrocobalt(III)chloride