Homoleptic complex from the following complexes is:
Diamminechloridonitrito-N-platinum (II)
Pentaamminecarbonatocobalt (III) chloride
Triamminetriaquachromium (III) chloride
Potassium trioxalatoaluminate (III)
The Correct Option is D
Approach Solution - 1
Let's analyze each complex to identify the homoleptic complex:
(A) Diamminechloridonitrito-N-platinum (II): This complex contains three different ligands - diammine (NH3), chlorido (Cl-), and nitrito-N (NO2-). It is not a homoleptic complex because it has multiple types of ligands.
(B) Pentaamminecarbonatocobalt (III) chloride: This complex contains two different ligands - pentaammine (NH3) and carbonato (CO32-). It is not a homoleptic complex because it has multiple types of ligands.
(C) Triamminetriaquachromium (III) chloride: This complex contains two different ligands - triammine (NH3) and triaqua (H2O). It is not a homoleptic complex because it has multiple types of ligands.
(D) Potassium trioxalatoaluminate (III): This complex contains only one type of ligand - trioxalato (C2O42-). It is a homoleptic complex because all the ligands surrounding the central metal ion (aluminum in this case) are of the same type.
Therefore, the correct answer is (D): Potassium trioxalatoaluminate (III).
Approach Solution -2
The hololeptic complex refers to a complex where all the ligands are identical.
Among the options provided:
- Diamminechloridonitrito-N-platinum (II) contains three different ligands: ammine (NH3), chlorido (Cl), and nitrito-N (NO2), so it's not hololeptic.
- Pentaamminecarbonatocobalt (III) chloride has two different ligands: ammine (NH3) and carbonato (CO3), so it's not hololeptic.
- Triamminetriaquachromium (III) chloride contains three ligands: ammine (NH3), aqua (H2O), and chlorido (Cl), so it's not hololeptic.
- Potassium trioxalatoaluminate (III) contains one type of ligand: trioxalato (C2O4), so it is a hololeptic complex.
So, the correct option is (D): Potassium trioxalatoaluminate (III)
Top Questions on coordination compounds
Given below are two statements regarding conformations of n-butane. Choose the correct option.
- JEE Main - 2026
- Chemistry
- coordination compounds
- The correct statement among the following is:
- JEE Main - 2026
- Chemistry
- coordination compounds
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
- JEE Main - 2026
- Chemistry
- coordination compounds
- \(20.0\,\text{dm}^3\) 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: \(\log 2 = 0.3010\), \(\log 5 = 0.6989\))
- JEE Main - 2026
- Chemistry
- coordination compounds
- From the following : (A) $[\text{Co}(\text{NH}_3)_6]^{3+}$ : Inner orbital complex, $d^2sp^3$ hybridization (B) $[\text{MnCl}_4]^{2-}$ : Outer orbital complex, $sp^3d^2$ hybridization (C) $[\text{CoF}_6]^{3-}$ : Outer orbital complex, $d^2sp^3$ hybridization (D) $[\text{FeF}_6]^{3-}$ : Outer orbital complex, $sp^3d^2$ hybridization (E) $[\text{Ni}(\text{CN})_4]^{2-}$ : Inner orbital complex, $sp^3$ hybridization Choose the correct answer from the given options.
- JEE Main - 2026
- Chemistry
- coordination compounds
Questions Asked in NEET exam
- Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.
- NEET (UG) - 2025
- Relative Velocity
- A physical quantity P is related to four observations a, b, c, and d as follows: P = a3 b2 (c / √d) The percentage errors of measurement in a, b, c, and d are 1%, 3%, 2%, and 4% respectively. The percentage error in the quantity P is:
- NEET (UG) - 2025
- Dimensional analysis and its applications
What is Microalbuminuria ?
- NEET (UG) - 2025
- Human physiology
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
- NEET (UG) - 2025
- Logic gates
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
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.