Chemistry Definitions Advanced Quiz 3
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Advanced Quiz 3
1. What is the definition of a racemic mixture?
A mixture containing equal amounts of left- and right-handed enantiomers
A mixture with only one enantiomer
A mixture of only achiral compounds
2. What is the definition of an amphoteric substance?
A substance that can act as both an acid and a base
A substance that is always an acid
A substance that is always a base
3. What is the definition of a coordination number?
The number of ligand atoms directly bonded to the central metal atom
The number of protons in the nucleus
The number of electrons in a shell
4. What is the definition of a crystal field splitting?
The separation of d-orbital energies in a transition metal complex due to ligand interactions
The splitting of atomic nuclei
The separation of s-orbital energies
5. What is the definition of a macromolecule?
A very large molecule, such as a protein or synthetic polymer
A molecule with only one atom
A type of ion
6. What is the definition of a rate constant (k)?
A proportionality constant in the rate law of a chemical reaction
The number of moles in a reaction
The energy required to break a bond
7. What is the definition of a partition coefficient?
The ratio of concentrations of a compound in two immiscible solvents at equilibrium
The ratio of the number of atoms in a molecule
The ratio of electrons to protons
8. What is the definition of an azeotrope?
A mixture of liquids that boils at a constant temperature and composition
A compound that cannot be separated by distillation
A gas at room temperature
9. What is the definition of a paramagnetic substance?
A substance with unpaired electrons that is attracted to a magnetic field
A substance with all paired electrons
A substance that is repelled by a magnetic field
10. What is the definition of a diamagnetic substance?
A substance with all paired electrons that is weakly repelled by a magnetic field
A substance with unpaired electrons
A substance that is strongly attracted to a magnetic field
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