CHEM 219 MODULE 2 ACTUAL EXAM
PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ Functional group: Alkyl or Aryl Halide..
Answer: Example: CH3ClMethyl Chloride- local anestheticR-X X can be F,
Cl, Br, I
◍ Thoil.
Answer: structural form
◍ VSEPR: Trigonal pyramidal 107 degrees.
Answer: 3 bonding pairs, 1 lone pair= 4 total
◍ 1,4-dioxacyclohexane.
Answer: Name the following ether using IUPAC systemic nomenclature
◍ Classify the bonding between the given pairs of atoms as ionic, covalent, or
polar covalent. Use the table of electronegativities shown below to help with
the classification.a. Br and Brb. K and Clc. P and Cld. C and Oe. Na and Br.
Answer: a. Br-Br: Electronegativity difference () = 0 = COVALENT (or
pure covalent)b. K-Cl: () = 2.2 = IONICc. P-Cl: ()= 0.9 = POLAR
COVALENTd. C-O: ()= 1.0 = POLAR COVALENTe. Na-Br: () = 1.8 =
POLAR COVALENT
◍ Explain (using specific evidence) what makes the following two compounds
constitutional isomers of one another:.
Answer: Both compounds have a MF of C3H6O - same MF.Compound "a"
has a 3-carbon chain with a C=O in the middle. No H atom connected to C
of C=O.Compound "b" has a 3-carbon chain with a C=O at the end. There is
an H attached to the C of the C=O.
, ◍ true.
Answer: Determine if the following statement regarding substitution and
elimination mechanisms are true or falseThe use of strong bases as
nucleophiles promotes elimination over substitution in most cases
◍ What will a mixture of alkane and water make?.
Answer: A two layer-biphasic system. It will float on top of water. since its
density is less than 1g/ml
◍ How are cycloalkanes named?.
Answer: With the prefix cyclo- in front of the corresponding alkane name
◍ Where is ortho, meta and para on benzene?.
Answer: 1, 5 are ortho. 2, 4 are meta. 3 is para.
◍ Why is radical halogenation only used when simple specific alkyl halides
are required?.
Answer: As the structure grows, the mixture of products becomes even more
complex and becomes challenging to separate the product mixture to obtain
the desired isomers.
◍ True.
Answer: Determine if the following statement regarding substitution and
elimination mechanisms are true or falseThe "2" in Sn2 stands for
bimolecular or second order
◍ Hydrogen bonding and VDWFS are classifies as nonbonding intermolecular
forces, what does this mean?.
Answer: That they are attractive forces between molecules that are not true
bonds in the sense of sharing or donating.
◍ 1. Nucleophile2. Substrate 3. Leaving group.
Answer: In the following reaction, identify the nucleophile, substrate, and
leaving group.1. Acetate Ion2. 1-bromopropane3. Bromine
◍ What it is H-A supposed to mean in the addition of acids?.
Answer: H is the acid A is the rest H-A
PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ Functional group: Alkyl or Aryl Halide..
Answer: Example: CH3ClMethyl Chloride- local anestheticR-X X can be F,
Cl, Br, I
◍ Thoil.
Answer: structural form
◍ VSEPR: Trigonal pyramidal 107 degrees.
Answer: 3 bonding pairs, 1 lone pair= 4 total
◍ 1,4-dioxacyclohexane.
Answer: Name the following ether using IUPAC systemic nomenclature
◍ Classify the bonding between the given pairs of atoms as ionic, covalent, or
polar covalent. Use the table of electronegativities shown below to help with
the classification.a. Br and Brb. K and Clc. P and Cld. C and Oe. Na and Br.
Answer: a. Br-Br: Electronegativity difference () = 0 = COVALENT (or
pure covalent)b. K-Cl: () = 2.2 = IONICc. P-Cl: ()= 0.9 = POLAR
COVALENTd. C-O: ()= 1.0 = POLAR COVALENTe. Na-Br: () = 1.8 =
POLAR COVALENT
◍ Explain (using specific evidence) what makes the following two compounds
constitutional isomers of one another:.
Answer: Both compounds have a MF of C3H6O - same MF.Compound "a"
has a 3-carbon chain with a C=O in the middle. No H atom connected to C
of C=O.Compound "b" has a 3-carbon chain with a C=O at the end. There is
an H attached to the C of the C=O.
, ◍ true.
Answer: Determine if the following statement regarding substitution and
elimination mechanisms are true or falseThe use of strong bases as
nucleophiles promotes elimination over substitution in most cases
◍ What will a mixture of alkane and water make?.
Answer: A two layer-biphasic system. It will float on top of water. since its
density is less than 1g/ml
◍ How are cycloalkanes named?.
Answer: With the prefix cyclo- in front of the corresponding alkane name
◍ Where is ortho, meta and para on benzene?.
Answer: 1, 5 are ortho. 2, 4 are meta. 3 is para.
◍ Why is radical halogenation only used when simple specific alkyl halides
are required?.
Answer: As the structure grows, the mixture of products becomes even more
complex and becomes challenging to separate the product mixture to obtain
the desired isomers.
◍ True.
Answer: Determine if the following statement regarding substitution and
elimination mechanisms are true or falseThe "2" in Sn2 stands for
bimolecular or second order
◍ Hydrogen bonding and VDWFS are classifies as nonbonding intermolecular
forces, what does this mean?.
Answer: That they are attractive forces between molecules that are not true
bonds in the sense of sharing or donating.
◍ 1. Nucleophile2. Substrate 3. Leaving group.
Answer: In the following reaction, identify the nucleophile, substrate, and
leaving group.1. Acetate Ion2. 1-bromopropane3. Bromine
◍ What it is H-A supposed to mean in the addition of acids?.
Answer: H is the acid A is the rest H-A
