Portage Learning CHEM 103 chemistry EXAM A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERIFIED ANSWERS

PORTAGE LEARNING EXAM vc vc




Exam Solutionvc




Chapter 21 Reagents Cartes 2026 A+ GRADE ASSURED C vc vc vc vc vc vc vc vc




OMPLETE SOLUTIONS AND VERIFIED ANSWERS (E2B61 vc vc vc vc vc




)




QUESTION 1 vc




[H30+], Br2 vc




ANSWER

Alpha-
Bromination Can be used to install a bromine at the T position of a ketone or aldehyde. Subsequent trea
vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc



tment of resulting alpha-bromoketone with pyridine gives beta-unsaturated ketone. This two-
vc vc vc vc vc vc vc vc vc vc



step process can be used to introduce a beta-unsaturated into a ketone or aldehyde.
vc vc vc vc vc vc vc vc vc vc vc vc vc




QUESTION 2 vc




1. Br2, PBR3 2. H20
vc vc vc vc




ANSWER

Hell-Volhard-
Zelinsky Reaction These reagents can be used to install a bromine atom at the alpha position of a carboc
vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc



yclic acid.
vc




QUESTION 3 vc




1) NaOH, Br2 2) H3O+
vc vc vc vc




ANSWER

Haloform Reaction These reagents can be used to convert a methyl ketone into a carboxylic acid. This pr
vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc



ocess is most efficient when the other alpha position (of the staring ketone) bears no protons
vc vc vc vc vc vc vc vc vc vc vc vc vc vc vc




QUESTION 4 vc




NaOH, H20 vc