12 Questions
Based on the information provided, what is the coordination number of Ni2+ in the complex Ni(CN)4-?
4
Which of the following statements about chelating agents is true?
Chelates are more stable than linear complexes.
What is the term used to describe the number of donor sites in a chelating agent?
Dentate
In complexometric titrations, what type of curve is observed when a stable chelate is formed in one step?
A curve with a single steep inflection region
Which of the following complexes has a coordination number of 2?
Ag(NH3)2+
What type of bond is formed between a metal and a ligand in a complex?
Coordinate bond
Which of the following statements accurately describes the formation of a metal-ligand complex?
The ligand donates both shared electrons in the coordinate bond.
What is the primary advantage of using a chelating agent in complexometric titrations?
Chelates form multiple coordinate bonds, increasing complex stability.
In the complex Fe(CN)6³⁻, what is the coordination number of the iron(III) ion?
6
Which of the following statements best describes the shape of the titration curve in a complexometric titration involving a stable chelate formation?
The curve has a single, steep inflection region, indicating a one-step complex formation.
What is the term used to describe chelating agents with four donor sites?
Tetradentate
In the complex Zn(NH₃)₄²⁺, what is the coordination number of the zinc(II) ion?
4
Learn about complexometric titrations in Pharmaceutical Analytical Chemistry II. Understand the concept of complex-forming titrations, soluble titrants, donor sites, and coordination number.
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