CHM 219 Module 4 Exam (updated 2025)
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Organic molecules contains Halogen atoms.
Ex. Algae, Mollusk, sponges, can be industrially used -
solvents, insecticides, herbicides, cleaning fluids, fire
Organohalides retardants, refrigerants. Can also be used as inhaled
anesthetic.
More important in organic chemistry because of theur
reactivity.
Two of the most important Substitution
reaction types typical of Elimination
organic Halides are....
Replacing the halogen in a molecule with another
Substitution Reaction
atom or functional group.
Removes the halogen and hydrogen atoms from the
Elimination original substrate molecule creating an unsaturated
compound.
Aliphatic hydrocarbons that possess one or more
Alkyl halide
halogen atom substituents.
Aromatic hydrocarbons (benzene rings) with one or
Aryl Halides
more halogen atoms attached to the ring.
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, 9/28/25, 1:25 PM CHM 219 Module 4 Exam (updated 2025) Questions & Answers | Latest Already Graded A+ UPDATE 2025|2026 Flashcards | Quizlet
Structural substitution surrounding any carbon atom
Steric Bulk that bears a halogen. Methyl, primary, secondary,
tertiary.
Only on e carbon is directly attached to the carbon
Primary Alkyl Halide
bearing the halogen.
Two carbons directly attached to the carbon ring
Secondary Alkyl Halid
bearing the halogen
Three carbons are directly attached to the carbon
Tertiary Alkyl Halide
bearing the halogen
Only hydrogen atoms attached to the carbon bearing
Methyl halide
the halogen
X Symbol for generic halogen
Carbon will be electron-deficient and thus hold a
Polarization of C-H bond slight positive charge and slight negative charge on
the halogen
Halogen is replaced (substituted by) a new atom or
Nucleophilic substitution
functional group.
reaction
Abbreviated Sn
Functional Group When one type of functional group (alkyl halide) is
Interconversion converted to another by substitution.
Substrate Molecule on which the substitution occurs.
Atom or group of atoms that is replaced by another
Leaving group
when substitution occurs
A chemical species that seeks positive charge due to
the presence of one or more lone pairs present on an
atom in the nucleophile
Typical Nucleophiles - O,N,S
Nucleophile
Nucleo = nucleus/positive charge
Phile = love
There can be negatively charged nucleophiles (more
reactive) or neutral nucleophiles.
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