Werner's Theory of Coordination Compounds

In the complexes  ${\left[\mathrm{Fe}{\left({\mathrm{H}}_{\mathrm{2}}\mathrm{O}\right)}_{\mathrm{6}}\right]}^{\mathrm{3}+},\mathrm{ }{\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_{\mathrm{6}}\right]}^{\mathrm{3}–},\mathrm{ }{\left[\mathrm{Fe}{\left({\mathrm{C}}_{\mathrm{2}}{\mathrm{O}}_{\mathrm{4}}\right)}_{\mathrm{3}}\right]}^{\mathrm{3}–}\mathrm{and} {\left[{\mathrm{FeCl}}_{\mathrm{6}}\right]}^{\mathrm{3}–},$  more stability is shown by

Nickel $(\mathrm{Z} = 28)$ combines with a uninegative monodentate ligand ${\mathrm{X}}^{-}$ to form a paramagnetic complex $[{\mathrm{NiX}}_4{]}^{2–}$. The number of unpaired electron/s in nickel and geometry of this complex ion are respectively _____.

Explain the term counter ion.

The ammonium iron $\left(\mathrm{II}\right)$ sulphate compound is also named as _____.

How does coordination compounds formed?

Addition compounds are known as the double salt. Justify.

How many ions are produced from the complex $\left[\mathrm{C}\mathrm{o}{\left(\mathrm{N}{\mathrm{H}}_3\right)}_6\right]\mathrm{C}{\mathrm{l}}_2$ in solution?

When $1$ mol ${\mathrm{CrCl}}_3$$.6{\mathrm{H}}_2\mathrm{O}$ is treated with excess of${\mathrm{AgNO}}_3, 3$ mol of$\mathrm{AgCl}$ are obtained. The formula of the complex is :

According to Werner’s theory of valency, transition metals possess:

For next two question please follow the same

Complex compounds are molecular compounds which retain their identities even when dissolved in water. They do not give all the simple ions in solution but instead furnish complex ions. The complex compounds are often called co-ordination compounds because certain groups called ligands are attached to the central metal ion by co-ordinate or dative bonds. Co-ordination compounds exhibit isomerism, both structural and stereoisomerism. The structure, magnetic property, colour and electrical properties of complexes are explained by various theories.

Arrange the following compounds in order of their molar conductance :

(i) K[Co(NO₂)₄(NH₃)₂]
(ii) [Cr(ONO)₃(NH₃)₃]
(iii) [Cr(NO₂)(NH₃)₅]₃[Co(NO₂)₆]₂
(iv) Mg[Cr(NO₂)₅(NH₃)]

The carnallite formed in the below reaction is an example of _____ compounds.

$\mathrm{KCl} + {\mathrm{MgCl}}_2 + 6{\mathrm{H}}_2\mathrm{O} \to \mathrm{KCl}.{\mathrm{MgCl}}_2.6{\mathrm{H}}_2\mathrm{O}$

Which of the following is a type of addition compounds?

Which of the following is a type of addition compounds?

The IUPAC name of the complex$\left[\mathrm{Pt}\right({\mathrm{NH}}_3{)}_3\mathrm{Br}\left({\mathrm{NO}}_2\right)\mathrm{Cl}]\mathrm{Cl}$is

${\left[{\mathrm{CuCl}}_4\right]}^{2-}$ exists while ${\left[{\mathrm{CuI}}_4\right]}^{2-}$does not exist. Why ?

The total number of ions furnished by ${\mathrm{K}}_4\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]$

The number of ions formed when $\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_4\right]{\mathrm{SO}}_4$ is dissolved in water is: 

Oxidation number of $\mathrm{Co}$ in ${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_3{\left({\mathrm{H}}_2\mathrm{O}\right)}_2\mathrm{Cl}\right]}^{+}$ is: