List of top Chemistry Questions on coordination compounds

According to Werner's theory, the primary valencies of the central metal atom :
Identify the paramagnetic outer orbital complex ion from the following.
The oxidation number of Pt in [Pt(en)2Cl2]2+ is :
The correct statement among the following is:

Consider a weak base \(B\) of \(pK_b = 5.699\). \(x\) mL of \(0.02\) M HCl and \(y\) mL of \(0.02\) M weak base \(B\) are mixed to make \(100\) mL of a buffer of pH \(=9\) at \(25^\circ\text{C}\). The values of \(x\) and \(y\) respectively are

\(20.0\,\text{dm}^3\) of an ideal gas \(X\) at \(600\) K and \(0.5\) MPa undergoes isothermal reversible expansion until the pressure of the gas becomes \(0.2\) MPa. Which of the following option is correct? (Given: \(\log 2 = 0.3010\), \(\log 5 = 0.6989\))
Consider that the coordinating atoms of the ligands in cis-[Co(NH$_3$)$_4$Cl$_2$]Cl and mer-[Co(NH$_3$)$_3$Cl$_3$] octahedral complexes are at the vertices of an octahedron. The sum of total number of the triangular faces in both the complexes having one N atom and two Cl atoms at their corners is _______.
The coordination number of cobalt in $[\text{Co(NH}_3)_6]^{3+}$ is}
According to Werner's theory of coordination compounds, the secondary valency represents

An octahedral coordination complex with the electronic configuration $t_{2g}^4 e_g^0$ is expected to exhibit which of the following magnetic properties and d-d transition characteristics?

For the metal complex \([\text{Co}(\text{NH}_3)_5\text{SO}_4]\text{Br}\), coordination number, oxidation number, number of \(d\)-electrons and number of unpaired \(d\)-electrons are respectively
The correct order of conductivity of 0.001 (M) separate aqueous solutions of \([\text{Pt}(\text{NH}_3)_6]\text{Cl}_4\) (i); \([\text{Cr}(\text{NH}_3)_6]\text{Cl}_3\) (ii); \([\text{Co}(\text{NH}_3)_4\text{Cl}_2]\text{Cl}\) (iii) and \(\text{K}_2\text{PtCl}_6\) (iv) each containing octahedral complex species is
Identify the complex which exhibits all 3 characteristics: paramagnetic; high spin configuration; octahedral geometry.
Choose the incorrect statement.
Which of the following is an INCORRECT match?
Which among the following is an ambidentate ligand?
Consider the following statements for [Ni(dmg)$_2$]: (A) It is a red coloured compound.
(B) It is readily soluble in water at pH = 9.
(C) Central metal ion has two unpaired electrons.
(D) It has four, 5-membered metal containing rings.
What is the coordination number of Fe in the complex \([Fe(C_2O_4)_3]^{3-}\)?
What is the coordination number of Cobalt in $[Co(en)_3]^{3+}$?
What is the oxidation state of Cobalt in \([Co(NH_3)_6]Cl_3\)?
The type of hybridisation of Co in \([CoF_6]^{3-}\) complex ion is
The EAN (Effective Atomic Number) of Iron in \([Fe(CN)_6]^{4-}\) is:
Which of the following is a didentate ligand?
The hybridisation involved in nickel of the complex ion \([Ni(CN)_4]^{2-}\) is.
In chemotherapy, the ligand used to remove the excess of copper is