Consider the following metal complexes:
[Co(NH3)6]3+
[CoCl(NH3)5]2+
[Co(CN)6]3–
[Co(NH3)5(H2O)]3+
The spin-only magnetic moment value of the complex that absorbs light with shortest wavelength is _______ B.M. (Nearest integer)
Consider the following metal complexes:
[Co(NH3)6]3+
[CoCl(NH3)5]2+
[Co(CN)6]3–
[Co(NH3)5(H2O)]3+
The spin-only magnetic moment value of the complex that absorbs light with shortest wavelength is _______ B.M. (Nearest integer)
Correct Answer: 0
Solution and Explanation
In all complexes, Co is present in the +3 oxidation state and all complexes are low spin or inner orbital complex.
The stronger the ligand, the higher the crystal field splitting.
So, the order of crystal field splitting is
[Co(CN)6]3– > [Co(NH3)6]3+> [Co(NH3)5(H2O)]3+ > [CoCl(NH3)5]2+.
The shortest wavelength is shown by the complex having maximum crystal field splitting.
spin magnetic moment=\(\sqrt{0(0+2)}\)=0 BM
Top Questions on coordination compounds
- Write the IUPAC name of complex compound \( K_3[Cr(C_2O_4)_3] \).
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
- Write the formula of Tetra-aminoaquachlorido-cobalt (III) chloride.
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
- The structure of complex ion [Ni(CN)$_4$]$^{2-}$ is
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
- The IUPAC name of complex compound [Co(NH$_3$)$_6$]Cl$_3$ is
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
- Isotonic solutions have equal
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
Questions Asked in JEE Main exam
- Let \( \alpha, \beta, \gamma \) and \( \delta \) be the coefficients of \( x^7, x^5, x^3, x \) respectively in the expansion of \( (x + \sqrt{x^3 - 1})^5 + (x - \sqrt{x^3 - 1})^5, \, x > 1 \). If \( \alpha u + \beta v = 18 \), \( \gamma u + \delta v = 20 \), then \( u + v \) equals:
- JEE Main - 2025
- binomial expansion formula
- Let \[ \int x^3 \sin x \, dx = g(x) + C, \quad \text{where \( C \) is the constant of integration.} \] If \[ g\left( \frac{\pi}{2} \right) + g\left( \frac{\pi}{2} \right) = \alpha \pi^3 + \beta \pi^2 + \gamma, \quad \alpha, \beta, \gamma \in {Z}, \] then \[ \alpha + \beta - \gamma \text{ equals:} \]
- JEE Main - 2025
- Integration by Parts
- The center of mass of a thin rectangular plate (fig - x) with sides of length \( a \) and \( b \), whose mass per unit area (\( \sigma \)) varies as \( \sigma = \sigma_0 \frac{x}{ab} \) (where \( \sigma_0 \) is a constant), would be
- JEE Main - 2025
- System of Particles & Rotational Motion
Electrolysis of 600 mL aqueous solution of NaCl for 5 min changes the pH of the solution to 12. The current in Amperes used for the given electrolysis is ….. (Nearest integer).
- JEE Main - 2025
- Electrolysis
If the system of equations \[ x + 2y - 3z = 2, \quad 2x + \lambda y + 5z = 5, \quad 14x + 3y + \mu z = 33 \] has infinitely many solutions, then \( \lambda + \mu \) is equal to:}
- JEE Main - 2025
- Calculus
Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.