CHEM 219 MODULE 2 CERTIFICATION
SCRIPT 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◍ End-on overlap molecules.
Answer: The binding/combination of either S or P orbitals, or both
◍ Anion.
Answer: Becomes negatively charged when it receives an electron
◍ cyclobutanol.
Answer: Name the following alcohol using IUPAC systematic nomenclature
◍ Amine.
Answer: If this nucleophile is added to an aldehyde or ketone an imine
results
◍ Ketone.
Answer: structural form
◍ carbocyclic.
Answer: molecules with at least 1 ring of all C
◍ when naming cycloalkanes, if more than one substituent is present....
Answer: carbons on the parent ring are numbered, starting with the carbon
with the substituent group with the highest alphabetical priority and
continuing in the direction that gives the other substituents the lowest locant
numbers (1-ethyl-2-methylcyclohexane)
◍ how to name cycloalkanes.
Answer: add prefix "cyclo" to the parent chain portion of the name
◍ Molecular Formula.
Answer: conveys the number and type of different atoms present in a
, compound.Example: CHCHCHCHCH2COH= C6H6O (MF)
◍ What are non-planar conformations?.
Answer: They take one or more of the carbon atoms of the ring and move it
above or below the plane.
◍ IUPAC rules for naming branced alkanes:.
Answer: 1. Find the parent name by identifying the longest continuous chain
of carbons.2. Number the parent chain. (begin at the end of the chain nearest
to the first branch.)3. If there are two equally long continuous chains, select
the one with most branches.4. If the first branch point is the same distance,
choose the one that gives the lowest substituents.5. If the substituents are
both equidistant then choose the numbering so the substituent goes with the
higher alphabetic priority.
◍ What is ring strain?.
Answer: Angle strain + Torsional strain. Ring strain destabilizes the
molecule and so the molecule tries to adopt a conformational structure to
minimize the strain energy.
◍ Super Condensed.
Answer: CH2(CH3)2OH2
◍ Formal Charge.
Answer: the electrical charge possessed by an atom when bonded in a
molecule.Formula = Group # of the element - (Dots + Dashes)
◍ prefixes for locating 2 substituents on a benzne.
Answer: (o) ortho = 1 carbon away (m) meta = 2 carbon away(p) para = 3
carbon away place letter instead of locant number
◍ What are the advantages of a nono-planar conformation?.
Answer: The hydrogen atoms attached to the carbon will be staggered and
removes some torsional strain.
◍ Olefins are ___ while acetylenes are ____?.
Answer: Alkenes, alkynes
SCRIPT 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◍ End-on overlap molecules.
Answer: The binding/combination of either S or P orbitals, or both
◍ Anion.
Answer: Becomes negatively charged when it receives an electron
◍ cyclobutanol.
Answer: Name the following alcohol using IUPAC systematic nomenclature
◍ Amine.
Answer: If this nucleophile is added to an aldehyde or ketone an imine
results
◍ Ketone.
Answer: structural form
◍ carbocyclic.
Answer: molecules with at least 1 ring of all C
◍ when naming cycloalkanes, if more than one substituent is present....
Answer: carbons on the parent ring are numbered, starting with the carbon
with the substituent group with the highest alphabetical priority and
continuing in the direction that gives the other substituents the lowest locant
numbers (1-ethyl-2-methylcyclohexane)
◍ how to name cycloalkanes.
Answer: add prefix "cyclo" to the parent chain portion of the name
◍ Molecular Formula.
Answer: conveys the number and type of different atoms present in a
, compound.Example: CHCHCHCHCH2COH= C6H6O (MF)
◍ What are non-planar conformations?.
Answer: They take one or more of the carbon atoms of the ring and move it
above or below the plane.
◍ IUPAC rules for naming branced alkanes:.
Answer: 1. Find the parent name by identifying the longest continuous chain
of carbons.2. Number the parent chain. (begin at the end of the chain nearest
to the first branch.)3. If there are two equally long continuous chains, select
the one with most branches.4. If the first branch point is the same distance,
choose the one that gives the lowest substituents.5. If the substituents are
both equidistant then choose the numbering so the substituent goes with the
higher alphabetic priority.
◍ What is ring strain?.
Answer: Angle strain + Torsional strain. Ring strain destabilizes the
molecule and so the molecule tries to adopt a conformational structure to
minimize the strain energy.
◍ Super Condensed.
Answer: CH2(CH3)2OH2
◍ Formal Charge.
Answer: the electrical charge possessed by an atom when bonded in a
molecule.Formula = Group # of the element - (Dots + Dashes)
◍ prefixes for locating 2 substituents on a benzne.
Answer: (o) ortho = 1 carbon away (m) meta = 2 carbon away(p) para = 3
carbon away place letter instead of locant number
◍ What are the advantages of a nono-planar conformation?.
Answer: The hydrogen atoms attached to the carbon will be staggered and
removes some torsional strain.
◍ Olefins are ___ while acetylenes are ____?.
Answer: Alkenes, alkynes
