To solve the given question, we need to analyze the coordination complex \([Co(NH_3)_5SO_4]Br\). Let's go through each part step-by-step:
- **Coordination Number**: The coordination number is determined by the number of ligand atoms that are directly bonded to the central metal ion. In \([Co(NH_3)_5SO_4]Br\), we have:
- \(5\) ammonia molecules \((NH_3)\) each coordinating through a nitrogen atom.
- \((SO_4)^{2-}\) acts as a monodentate ligand here since it's written within the complex ion brackets.
- **Oxidation Number**: Let the oxidation state of Co be \(x\).
Considering electroneutrality, the complex is neutral:
- \(x + 5(0) + (-2) + (+1) = 0\) (since NH3 has no charge and Br- is outside the complex)
This simplifies to:
- \(x - 2 + 1 = 0\)
Therefore, \(x = +3\).
- **Number of d-Electrons**: The electronic configuration of \(Co\) in an isolated state is \([Ar] 3d^7 4s^2\). In the oxidation state of \(+3\), cobalt would lose three electrons, which results in a configuration of \(3d^6\) for the Co3+ ion.
- **Number of Unpaired d-Electrons**: With a \(3d^6\) configuration and being in a low-spin state due to strong field ligands like NH3, all electrons are paired.
- Therefore, the number of unpaired d-electrons is \(0\).
By analyzing all these factors, the characteristics are: Coordination number = \(6\), Oxidation number = \(+3\), Number of d-electrons = \(6\), and Number of unpaired d-electrons = \(0\).
Hence, the correct answer is 6, 3, 6, 0.
Similar Questions
- Which of the following is the structure of pyrosulphuric acid?
- The correct order of conductivity of $0.001\text{ (M)}$ separate aqueous solutions of $[Pt(NH_3)_6]Cl_4\text{ (i)}$; $[Cr(NH_3)_6]Cl_3\text{ (ii)}$; $[Co(NH_3)_4Cl_2]Cl\text{ (iii)}$ and $K_2PtCl_6\text{ (iv)}$ each containing octahedral complex species is
- Borazole is prepared by heating the product isolated by reacting
The calculated magnetic moment for low spin $[Ru(EDTA)]^-$ is
- Among $\text{N}_{2}\text{O}, \text{ClF}_{2}^{-}, \text{SO}_{2}$ and $\text{I}_{3}^{+}$, the species having the linear structures are
- Peroxide ion is
- In which of the following species, $sp^3d^2$ hybridisation is not associated?
- Which of the following have tetrahedral structures?
Nickel combines with a uninegative monodentate ligand (X−) to form a paramagnetic complex [NiX4]2−. The hybridisation involved and number of unpaired electrons present in the complex are respectively
Which of the following statements is incorrect ?
Important Questions from Inorganic Chemistry
- A chromium complex with a formula $\text{CrCl}_3\cdot 6\text{H}_2\text{O}$ has a spin only magnetic moment value of $3.87 \text{ BM}$ and its solution conductivity corresponds to $1 : 2$ electrolyte. $2.75 \text{ g}$ of the complex solution was initially passed through a cation exchanger. The solution obtained after the process was reacted with excess of $\text{AgNO}_3$. The amount of $\text{AgCl}$ formed in the above process is _____ g. (Nearest integer)
[Given: Molar mass in $\text{g mol}^{-1}$ $\text{Cr} : 52; \text{Cl}: 35.5, \text{Ag}: 108, \text{O}: 16, \text{H}: 1$] - Consider the following reactions :
$\text{NaCl} + \text{K}_2\text{Cr}_2\text{O}_7 + \text{H}_2\text{SO}_4 \rightarrow \text{A} + \text{KHSO}_4 + \text{NaHSO}_4 + \text{H}_2\text{O}$
$\text{A} + \text{NaOH} \rightarrow \text{B} + \text{NaCl} + \text{H}_2\text{O}$
$\text{B} + \text{H}_2\text{SO}_4 + \text{H}_2\text{O}_2 \rightarrow \text{C} + \text{Na}_2\text{SO}_4 + \text{H}_2\text{O}$
In the product 'C', 'X' is the number of $\text{O}_2^{2-}$ units, 'Y' is the total number oxygen atoms present and 'Z' is the oxidation state of Cr. The value of X + Y + Z is ____________. - Identify the metal ions among $\text{Co}^{2+}, \text{Ni}^{2+}, \text{Fe}^{2+}, \text{V}^{3+}$ and $\text{Ti}^{2+}$ having a spin-only magnetic moment value more than $3.0\text{ BM}$. The sum of unpaired electrons present in the high spin octahedral complexes formed by those metal ions is __________.
The crystal field splitting energy of $[\text{Co(oxalate)}_3]^{3-}$ complex is '$n$' times that of the $[\text{Cr(oxalate)}_3]^{3-}$ complex. Here '$n$' is ___________. (Assume $\Delta_o >> P$)
- Which of the following is the structure of pyrosulphuric acid?
