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In a complex compound ligand acts as...

In a complex compound ligand acts as

A

Lewis acid

B

Lewis base

C

Lowry-Bronsted acid

D

Arrhenius base

Text Solution

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The correct Answer is:
To solve the question "In a complex compound, ligands act as:", we need to understand the role of ligands in coordination chemistry. Here's a step-by-step breakdown of the solution: ### Step 1: Define a Complex Compound A complex compound consists of a central metal atom or ion surrounded by molecules or anions, which are known as ligands. **Hint:** Recall that complex compounds are formed by the coordination of metal ions with surrounding ligands. ### Step 2: Understand the Role of Ligands Ligands are species that can donate lone pairs of electrons to the central metal atom or ion. This donation of electron pairs is crucial for the formation of coordinate bonds. **Hint:** Remember that ligands can be neutral molecules or charged ions that have lone pairs available for donation. ### Step 3: Identify the Nature of Ligands In coordination chemistry, ligands are classified based on their ability to donate electrons. When ligands donate lone pairs of electrons, they act as Lewis bases. **Hint:** Think about the Lewis definitions: Lewis acids accept electron pairs, while Lewis bases donate them. ### Step 4: Conclude the Role of Ligands Since ligands donate lone pairs of electrons to the central metal atom or ion, they are classified as Lewis bases in the context of complex compounds. **Hint:** Focus on the definition of Lewis bases to solidify your understanding of the role of ligands. ### Final Answer In a complex compound, ligands act as Lewis bases.
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