Organic Chemistry Questions Which of the following compounds a–d has an IR absorption at 3300 cm–1? a a b b c c d d Organic Chemistry Answers
The Key here is to determine the configuration R or S for each chiral carbon The answer here is 1S, 2S 2 Consider the SN1 reaction of tert-butyl chloride with
This book contains 400 multiple choice questions on 20 topics of pre- university chemistry Organic Chemistry»), 2) in any other relevant source of knowledge; 3) most answers are hidden in other questions from this book Finally, all those
Keywords: first year, chemistry education, multiple choice short answer (SA) questions, have been thoroughly examined, both generally (Nicol, 2007; structures of organic compounds and write balanced equations, which cannot be
https://collaborate mnstate edu/public/blogs/jasperse/online-organic-chemistry- courses/online-organic-chemistry-ii-360-fall-spring/ Test Page Test 1 Version 1
For example, the knowledge necessary to answer some questions classified as testing organic chemistry may well have been acquired in analytical chemistry
MULTIPLE-CHOICE QUESTIONS FOR THE FACULTIES OF MEDICINE AND DENTAL MEDICINE E None of the above answers is correct 41 The number of organic compounds produced by the thermal decomposition of butane , is: A 4
The questions in objective tests require a very short answer The questions are We illustrate here examples of systemic multiple choice questions that can form the basis of organic, heterocyclic, and physical, chemistry are presented here
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Practice Tests Answer Keys, Organic Chemistry 2
Online Organic Chemistry 2, Chem 360, Dr. Craig P. Jasperse, Minnesota State University Moorhead
For full class website, see
Test Page
Test 1 Version 1 3
Test 1 Version 2 9
Test 1 Version 3 15
Test 1 Version 4 21
Test 2 Version 1 27
Test 2 Version 2 35
Test 2 Version 3 43
Test 2 Version 4 51
Test 3 Version 1 61
Test 3 Version 2 67
Test 3 Version 3 75
Test 4 Version 1 81
Test 4 Version 2 87
Test 4 Version 3 93
Final Exam 101
1 2
1 JASPERSE CHEM 360 TEST 1 VERSION 1 Alcohols and Retrosynthesis 1. Give the major product for the following reactions. (3 points each) O
MgBr 1. 2. H 3 O PhOH H 2 CrO 4 OCH 3
O1. PhMgBr (excess)
2. H 3 O OH
1. TsCl, pyridine
2. NEt
3 , heat O O
1. LiAlH
4 2. H 3 O OH H Br
1. Na
2. OH
3. PhCHO
4. H 3 O
1. PBr
3
2. Mg3Te
xt
2 2. Give Names or structures for the following: (9 points) para-ethylphenol 3. For each of the following pairs, circle the one that is higher boiling and put a square around the one with the higher water solubility. (4 points) 4. Which of the following statements is true? (4 points) a. When an ether solution of A and B in a separatory funnel is treated with neutral water, only B remains in the ether layer. b. When an ether solution of A and B in a separatory funnel is treated with neutral water, neither A nor B remains in the ether layer. c. When an ether solution of A and B in a separatory funnel is treated with basic water (NaOH/H2O), both A and B remain in the ether layer. d. When an ether solution of A and B in a separatory funnel is treated with basic water (NaOH/H2O), only B remains in the ether layer. 5. For the following transformation, which of the following statements is true? (4 points) a. D is the only acceptable solvent b. C is the only acceptable solvent c. C and D are both acceptable solvents d. B, C, and D are all acceptable solvents e. A and B are the only acceptable solvents OH
Cl OH OHOH a. OHH 3 C OHHO b. OHOH BA Br OH O O D C BA H 2
O CH
3 OH
Solvent Options
1. Mg, solvent
2. H 2 C=O 3. H 3 O +4Te
3 6. Suggest a possible structure for an unknown A whose formula is C5H10O and gives the following chemical test results. (5 points) Formula C5H10O Hydrogenation Test H2/Pt No reaction Chromic Acid Test H2CrO4 Turns Green Lucas Test HCl/ZnCl2 Reacts within 5 minutes 7. Provide the mechanisms for the following reactons (3, 5, and 5 points) OOH
1. LiAlH
4 2. H 3 O Cl O Me OH Me ("Me"=methyl=CH 3
1. MeMgBr
2. H 3 O Me Br Me OH Me Me
H-Br5Te
xt
4 8. Provide the reagents necessary to accomplish the following transformations (4 points each) O
O Ph (2-3 steps) O O OCH 3 Br O OCH 3 (2-3 steps) PhBr PhPh Ph OH (2-3 steps) OH OH (2-3 steps) OH O (2 steps) optically active optically active PhOH PhOH O (4-5 steps)6Te xt
5 9. Rank the acidity of the following, from most acidic (1) to least acidic (4). (4 points) 10. Design syntheses of the following. (6 points each). Allowed starting materials (same as practice) include: cyclopentanol any esters ethylene oxide formaldehyde iodomethane any acyclic alcohol or alkene wth ≤4 carbons any "inorganic" agents (things that won't contribute carbons to your skeleton) OH
OH H 2 O O7Te xt 8
1 JASPERSE CHEM 360 TEST 1 VERSION 2 Alcohols and Retrosynthesis 1. Give Names or structures for the following: (9 points) ortho-chlorophenol 2. For each of the following pairs, circle the one that is higher boiling and put a square around the one with the higher water solubility. (4 points) 3. Of the listed four chemicals, circle those which would ionize methanol (convert it to sodium or magnesium methoxide)? (4 points) Na NaNH2 NaOH CH3MgBr 4. If an ether solution of the following three compounds was washed with NaOH/H2O, which (if any) of the compounds would remain in the ether layer? Circle any that would. (3 points) 5. Of the following common solvents , circle those that are unsuitable as solvents for the preparation and reactions of Grignard reagents (assuming you want the Grignard reagent to react with something else). (3 points) OH
OH OHOHquotesdbs_dbs2.pdfusesText_2
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