CHEM 210 NEWEST COMPREHENSIVE EXAM
QUESTIONS AND ANSWERS SURE A+
conformational isomers - ✔✔same molecular formula, same compound, different
arrangement (connections) of atoms by rotation around a single bond
✔✔stereoisomers - ✔✔same molecular formula, same arrangement (connections) of
atoms, but different 3D geometry and different compounds
✔✔pericyclic - ✔✔bonds are broken and formed simultaneously
✔✔radical - ✔✔bonds are broken and formed by single e- movement
✔✔polar - ✔✔bonds are broken and formed by e- pair movement
✔✔rearrangement - ✔✔a single reactant undergoes reorganization of bonds and atoms
to form an isomeric product
✔✔elimination - ✔✔a single reactant splits into 2 products (often with the formation of a
small molecule like H2O or HBr)
✔✔addition - ✔✔2 reactants add together to form a single product with no atoms
leftover
✔✔substitution - ✔✔2 reactants exchange parts to give 2 new products
✔✔homolytic bond cleavage - ✔✔symmetrical bond-breaking; movement of 1 e- to one
atom and another e- to a different atom (radical)
✔✔heterolytic bond cleavage - ✔✔asymmetrical bond-breaking; e- pair movement to
one atom (polar)
✔✔C-H bond length - ✔✔1.09 A
QUESTIONS AND ANSWERS SURE A+
conformational isomers - ✔✔same molecular formula, same compound, different
arrangement (connections) of atoms by rotation around a single bond
✔✔stereoisomers - ✔✔same molecular formula, same arrangement (connections) of
atoms, but different 3D geometry and different compounds
✔✔pericyclic - ✔✔bonds are broken and formed simultaneously
✔✔radical - ✔✔bonds are broken and formed by single e- movement
✔✔polar - ✔✔bonds are broken and formed by e- pair movement
✔✔rearrangement - ✔✔a single reactant undergoes reorganization of bonds and atoms
to form an isomeric product
✔✔elimination - ✔✔a single reactant splits into 2 products (often with the formation of a
small molecule like H2O or HBr)
✔✔addition - ✔✔2 reactants add together to form a single product with no atoms
leftover
✔✔substitution - ✔✔2 reactants exchange parts to give 2 new products
✔✔homolytic bond cleavage - ✔✔symmetrical bond-breaking; movement of 1 e- to one
atom and another e- to a different atom (radical)
✔✔heterolytic bond cleavage - ✔✔asymmetrical bond-breaking; e- pair movement to
one atom (polar)
✔✔C-H bond length - ✔✔1.09 A
