Chemical Reactions and Coordination Chemistry

This video tutorial covers AQA A-level inorganic chemistry, focusing on Period 3 elements, transition metals, and reactions of metal aqua ions. It discusses the properties and reactions of these elements, including their oxidation states, complex formation, and catalytic roles. The video also explains the shapes and isomerism of transition metal complexes, as well as the reactions of metal aqua ions with various substances. The tutorial concludes with a summary and encourages viewers to engage with the content.

Which Period 3 element is more reactive due to having only one electron to lose?

• Magnesium

• Aluminum

• Sodium

• Sulfur

What type of bond is formed by ligands donating a lone pair of electrons to a central metal ion?

• Coordinate bond

• Covalent bond

• Ionic bond

• Hydrogen bond

Which type of ligand can form two coordinate bonds with a central metal ion?

• Unidentate

• Bidentate

• Tridentate

• Multidentate

What is the bond angle in a tetrahedral complex?

• 180 degrees

• 120 degrees

• 90 degrees

• 109.5 degrees

Which isomerism involves ligands being next to or opposite each other in a complex?

• Optical isomerism

• Structural isomerism

• Geometric isomerism

• Cis-trans isomerism

What is the role of a catalyst in a chemical reaction?

• Increases the temperature

• Decreases the pressure

• Speeds up the reaction

• Changes the reactants

Which type of catalyst is in the same phase as the reactants?

• Homogeneous

• Heterogeneous

• Autocatalyst

• Enzyme

What happens to the rate of reaction in autocatalysis as the product increases?

• Stops

• Increases

• Remains constant

• Decreases

What color precipitate does iron(II) form in solution?

• Purple

• Colorless

• Blue

• Green

What is the result of ligand substitution in metal aqua ions with chlorine ions?

• Formation of octahedral ions

• Formation of tetrahedral ions

• Formation of square planar ions

• Formation of linear ions