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Organic Chemistry 2 ACS Final Exam – Qualified Practice Questions and Answers

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This study material covers key topics typically tested on the Organic Chemistry 2 ACS Final Exam, including aromatic compounds, carbonyl chemistry, amines, spectroscopy, reaction mechanisms, and synthesis. It contains practice questions with detailed answers designed to help students prepare for comprehensive ACS standardized examinations. The content is suitable for final exam review and reinforces both conceptual understanding and problem-solving skills.

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ORGANIC CHEMISTRY 2 ACS FINAL
EXAMS WITH QUALIFIED QUESTIONS
AND ANSWERS
How can an aldehyde be protected? - ANSWER-Using a diol and H+



What does permanganate do? (KMnO4, NaOH) - ANSWER-Oxidizes aldehydes and primary alcohols to
carboxylic acids



How can an acetal (being used as a protecting group) be hydrolyzed back to it's original form? -
ANSWER-H2O and H+ and heat



At what frequency is an OH or NH bond in IR spec? - ANSWER-3400



At what frequency is a CH (sp3) bond in IR spec? - ANSWER-3000-2850



At what frequency is a CH (sp2) bond in IR spec? - ANSWER-3100-3000



At what frequency is a CH (sp) bond in IR spec? - ANSWER-3300



At what frequency is a C-C triple bond or C-N triple bond in IR spec? - ANSWER-2100



At what frequency is C=O bond in IR spec? - ANSWER-1700



At what frequency is a C=C bond or aromatic C-C bond in IR spec? - ANSWER-1600

, At what frequency is an aromatic C-C bond in IR spec? - ANSWER-1500



At what frequency is carboxylic acid in IR spec? - ANSWER-1720 + a strong and broad band at 2500-3300



At what frequency is an amide bond in IR spec? - ANSWER-two medium strength bands around 3400 +
the carbonyl band below 1700



At what frequency is an sp3 C atom in a proton NMR spec? - ANSWER-1



At what frequency is a C atom attached to a pi system in a proton NMR? - ANSWER-2



At what frequency is a C atom attached to an O atom in a proton NMR? - ANSWER-3-4



At what frequency is an sp2 C atom in a proton NMR? - ANSWER-5-6



At what frequency is an aromatic C atom in a proton NMR? - ANSWER-7-8



At what frequency is an aldehyde C atom in a proton NMR? - ANSWER-10



At what frequency is a carboxylic O atom in a proton NMR? - ANSWER-11-12



At what ppm is an sp3 alkyl C atom in carbon NMR? - ANSWER-10-30



At what ppm is an sp3 C atom attached to O, N, or X in carbon NMR? - ANSWER-50-70



At what ppm is an sp C atom in carbon NMR? - ANSWER-75-90

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