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Which of the following is a suitable reagent that will quickly distinguish between pentanal an 3- pentanone? - ANS Tollen's Reagent (Tollen's test takes advantage of the relative ease of oxidation of an aldehyde to a carboxylic acid..silver(I) dissolved in aqueous ammonia. pg 97 of manual) In the aldol condensation, the base: - ANS is the first step of the base catalyzed by mechanism, a hydroxide (base) ion abstracts one of the alpha-hydrogens to produce the enolate. (pg 285) Choose...

3 | P a g e C o p y r i g h t © 2 0 2 5 T H E B R I G H T A L L R I G H T S R E S E R V E D I. II. III. a. I only b. I and II c. II and III d. I and III e. I, II, and III - ANS b. I and II How are triazine herbicides prepared? a. electrophilic aromatic substitution b. SN2 c. nucleophilic aromatic substitution d. dehydrohalogenation e. SN1 - ANS c. nucleophilic aromatic substitution Which among the derivatives of carboxylic acids are the least reactive towards hydrolysis? a. esters...

1 | P a g e C o p y r i g h t © 2 0 2 5 T H E B R I G H T A L L R I G H T S R E S E R V E D CHEM 238 FINAL EXAM 2025 QUESTIONS AND ANSWERS In IR spectra, each functional group has different ______ & ______ modes which lead to _________ - ANS bonding; stretching; difference absorbance what must change in order for vibration to show in IR spectra? - ANS dipole of molecule where is the fingerprint region located? - ANS 1400-400 nm where are benzene, hydroxyl, and carbonyl groups found in IR...

CHEM 238 TEST PAPER 2025/2026 QUESTIONS AND SOLUTIONS MARKED A+

CHEM 238 STUDY GUIDE 2025/2026 QUESTIONS AND SOLUTIONS MARKED A+

CHEM 238 FINAL PAPER 2025/2026 QUESTIONS AND SOLUTIONS MARKED A+

CHEM 238 EXAMINATION TEST 2025/2026 QUESTIONS AND SOLUTIONS MARKED A+

CHEM 238 EXAM SET 2025/2026 QUESTIONS AND SOLUTIONS MARKED A+

CHEM 238 EXAM SCRIPT 2025/2026 QUESTIONS AND SOLUTIONS MARKED A+