Nile University of Nigeria

CHM 102

Practice 270+ past questions for CHM 102 at Nile University of Nigeria. Organized by topic with explanations. Free preview on Testwiz.

270+ questions25 topics100 LevelTopic summaries

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About CHM 102 at Nile University of Nigeria

CHM 102 is a 100 Level course at Nile University of Nigeria. Students preparing for CHM 102 exams on Testwiz get 270+ practice questions across 25 topics and topic summaries.

Instead of cramming the night before, students who practice by topic — Isoelectric Point (pI), Titration Curves of Amino Acids, Electrophoresis of Amino Acids, and more — build real familiarity with how Nile University of Nigeria tests CHM 102, catch weak spots early with Testwiz's analytics, and walk into the exam with actual reps under their belt.

Topics covered

Isoelectric Point (pI)Titration Curves of Amino AcidsElectrophoresis of Amino AcidsProtecting Groups in Peptide SynthesisPeptide Sequencing MethodsReduction of SugarsCarbohydrate StereochemistryFischer and Haworth ProjectionsPeptide Bond Formation and NomenclatureAldopentose Relationship TableD- and L-Sugar AssignmentBiological Importance of Histidine+13 more

Sample questions

1. What is the isoelectric point (pI) of histidine, given its pKa values of 1.82, 6.00, and 9.17?

a.\( (1.82 + 9.17 + 6.00)/3 = 5.66 \)

b.\( (6.00 + 9.17)/2 = 7.59 \)

c.\( (1.82 + 6.00)/2 = 3.91 \)

d.\( (1.82 + 9.17)/2 = 5.50 \)

2. Which of the following statements about the titration curve of histidine is TRUE?

a.At the half-equivalence point, the solution contains 100% of the deprotonated species.

b.The imidazole side chain loses its proton before the α-COOH group.

c.The α-NH₃⁺ group is the first to lose a proton during titration.

d.The buffer region is centered around the pKa value of the ionizing group.

3. A student performs electrophoresis on a mixture of glycine, cysteine, asparagine, and lysine at pH 9.5. Which amino acid will move most strongly toward the anode?

a.Cysteine

b.Glycine

c.Asparagine

d.Lysine

4. What is the net charge of lysine at pH 7.0, given its pKa values of 2.18, 8.95, and 10.53?

a.-1

b.0

c.+2

d.+1

5. Which of the following reagents is used to remove a Boc (tert-butyloxycarbonyl) protecting group from an amino group?

a.Dicyclohexylcarbodiimide (DCC)

b.Trifluoroacetic acid (TFA)

c.Sodium hydroxide (NaOH)

d.Hydrogen fluoride (HF)

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Testwiz has 270+ CHM 102 practice questions for Nile University of Nigeria, organized across 25 topics. Sign up free to start practicing.

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What topics does CHM 102 cover on Testwiz?

CHM 102 on Testwiz covers Isoelectric Point (pI), Titration Curves of Amino Acids, Electrophoresis of Amino Acids, and more. Practice on Testwiz to see the full topic breakdown and sample questions.