In a quantitative analysis of second group in the lab, H2S gas is passed in an acidic medium for ppt. When Cu+2 and Cd+2 react with KCN, then in which of the following conditions will a precipitate not be formed due to relative stability:
 

1.	K2[Cu(CN)4] – More stable K2[Cd(CN)4] – Less stable
2.	K2[Cu(CN)4] – Less stable K2[Cd(CN)4] – More stable
3.	K3[Cu(CN)4] – More stable K2[Cd(CN)4] – Less stable
4.	K3[Cu(CN)4] – Less stable K3[Cd(CN)4] – More stable

Which one of the following pair represents stereoisomerism:

1. Linkage isomerism and Geometrical isomerism

2. Chain isomerism and Rotational isomerism

3. Optical isomerism and Geometrical isomerism

4. Structural isomerism and Geometrical isomerism

A complex compound is formed by ligands nitrate and chloride. It gives two moles of AgCl precipitate with $AgN{O}_3$. What will its formula be? 

1. $\left[Co{\left(N{H}_3\right)}_{5}N{O}_3\right]C{l}_2$

2. $\left[Co{\left(N{H}_3\right)}_{5}Cl\right]N{O}_{3}Cl$

3. $\left[Co{\left(N{H}_3\right)}_{4}C{l}_2\right]N{O}_3$

4. $[Co{\left(N{H}_3\right)}_{4}ClN{O}_3]Cl$

The shape of Fe(CO)₅ is:

Which one of the following is expected to exhibit optical isomerism?
(en = ethylenediamine)

1. cis-[Pt(NH₃)₂Cl₂]  

2. cis-[Co(en)₂Cl₂]

3. trans−[Co(en)₂Cl₂]

4. trans−[Pt(NH₃)₂Cl₂]

Mg is present in:

Number of isomers of $[Pt$ ${\left(N{H}_3\right)}_4]$ $\left[CuC{l}_4\right]$ complex are:

Which one of the following is an inner orbital complex as well as is diamagnetic in behaviour?

1. [Zn (NH₃)₆]²⁺

2. [Ni (NH₃)₆]²⁺

3. [Cr (NH₃)₆]³⁺

4. [Co (NH₃)₆]³⁺

The coordination compound that will give four isomers is:

1. [Fe(en)₃]Cl₃

2. [Co(en)₂Cl₂]Cl

3. [Fe(PPh₃)₃NH₃ClBr]Cl

4. [Co(PPh₃)₃Cl]Cl₃

The IUPAC name of $\left[Co{\left(N{H}_3\right)}_{3}ClBrN{O}_2\right]$ will be:

1. Triamminebromochloronitrocobaltate (III)
2. Triamminebromochloronitrocobalt (III)
3. Triamminebromonitrochlorocobalt (III)
4. Triamminenitrobromochlorocobalt (III)