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ORGANIC CHEMISTRY II PRACTICE QUESTIONS 1. An organic compound "A" with molecular formula ArCl on treatment...
6. An organic compound U with molecular formula C19H38 gave 2, 6, 12, 14- tetramethylpentadecane on...
6. An organic compound U with molecular formula C19H38 gave 2, 6, 12, 14- tetramethylpentadecane on hydrogenation. Ozonolysis of U gave propanone and a 16- carbon aldehyde V as products. Give the structures of U and V and provide the name for U. 7. An unknown hydrocarbon Q has a formula CaH12. Q Reacts with osmium tetroxide to give a diol R. When oxidized with KM O4 in an acidic medium, Q gives two products. One product is propanoic acid...
Organic Chemistry II Question 3: Compound B has the molecular formula of C6H10 and gives (CH3)2CHCH2CH2CH3...
Organic Chemistry II Question 3: Compound B has the molecular formula of C6H10 and gives (CH3)2CHCH2CH2CH3 when treated with excess H2 in the presence of Pd. B reacts with NaNH2 and CH3I to form compound C that has the molecular formula C7H12. Give the structures for B and C.
identify the preferred site(s) of electrophilic attack on the following compound 1-CH-04 >> ringt r ing...
identify the preferred site(s) of electrophilic attack on the following compound 1-CH-04 >> ringt r ing 2 A) ortho para positions on ring 1 B) meta position on ring 2 C) meta position on ring 1 D) orthopara positions on ring 2 2) The major products) in the nitration of benzoic acid isare) A) nitrobenzene. B) nitroben ene and para-nitrobenzoic acid. C) mixture of the and pre-nitrobenzoic acid. D -nitrobenzoic acid. 3) What is the electrophile in the Friedel-Crafts alkylation...
please also show the steps. Thanks! IV. Homework Assignments Chemistry 421 HWW Fall 2012 Pick the...
please also show the steps. Thanks!
IV. Homework Assignments Chemistry 421 HWW Fall 2012 Pick the most correct answer (show your work!): 1. Which molecule is anti aromatic? 2. Which is another name for vinylbenzene? a. phenol b. aniline c.cumene d. styrene c. anisole 3. Which is another name for CHOPh ? a. phenol b. aniline c.cumene d. styrene e . anisole 4. Which is another name for H2N-Ph? a. phenol b. aniline c.cumene d . styrene e. anisole 5....
Benzene is an organic chemical compound with the molecular formula . In the benzene molecule, carbon...
Benzene is an organic chemical compound with the molecular
formula
.
In the benzene molecule, carbon atoms form a ring with alternating
single and double bonds connecting them. Thus, each individual
carbon atom forms one
bond with another carbon atom and one
and one
bond with another carbon atom. Each carbon atom also forms
one
bond with a hydrogen atom.
Identify which types of orbitals overlap to form the bonds between
the atoms in a benzene molecule.
Drag the appropriate...
The following questions are from an experiment titled Friedel-Crafts Alkylation for Organic Chemistry II Lab. There...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
COURSE TITE & CODE-Organic Chemistry-II (CHEM3201) EXERCISE NO-1 Exercise: 1. How is classification of amines different...
COURSE TITE & CODE-Organic Chemistry-II (CHEM3201) EXERCISE NO-1 Exercise: 1. How is classification of amines different from that of alcohols? Exercise: 2. Amines are more basic than comparable alcohols. Exercise: 3. How will you distinguish between (a) Aniline and methyl amine (b) Di-methyl amine and tri-methyl amine. Exercise: 4. Write structure and IUPAC name of The amide which gives propanamine by Hofmann bromamide reaction (ii) The salt which gives methylene cyclohexene & trimethylamine by the Hoffman elimination reaction. Exercise: 5....
2. An organic compound E has the molecular formula C12Hi7NO gives spectroscopic data as follow: a)...
2. An organic compound E has the molecular formula C12Hi7NO gives spectroscopic data as follow: a) IR (KBR Disc): Amux 3296, 1642 cm b) 'H NMR (CDCl) : 6 0.93 (, 3H); 1.48 (d, 3H); 1.66 (sextet, 2HD) 2.15 (G, 2H); 5.14 (q, 1H):5.74 (broad, s, exchange with D20, 1H); 7.42-7.23 (m, 5H) i3C NMR (CDCl;) : δ 13.7 (q); 19.1 (t); 21.7 (q); 38.8 (t); 48.5 (d); 126.1 (d): 127.3 (d); 128.6 (d); 143.0 (s); 172.0 (s) c) d)...
organic chemistry 3 and 4 III. Two unknowns, X and Y, both having the molecular formula...
organic chemistry 3 and 4
III. Two unknowns, X and Y, both having the molecular formula C4HsO, give the following results with four chemical tests. Propose structures for X and Y consistent with this information. (6%) Bromine Na meta Chromic acid Lucas reagent Compound X decolorizes Bubbles Orange to greenNo reaction Compound Y No reaction No reaction No reaction No reaction 國立清華大學命題紙 98學年度 生醫工程與環境科學系 系(所) 乙(環境分子科學) 組碩士班入學考試 科目 有機化學與物理化學 科目代碼 2404 共一3.一頁第一3-一頁,請在【答案卷卡】內作答 IV. (a) Optically active 2-bromobutane undergoes racemization on...
please help me with organic chemistry! i swear we havent talked about any of this in...
please help me with organic chemistry! i swear we havent
talked about any of this in class.
1) Compounds A, B, and have the same molecular formula. C.H. They all react with H/PtO2 to give the same compound. The reaction of A or B with H2O/HSO, or with BH-THF, followed by treatment with a basic solution of hydrogen peroxide, gives the same compound, namely D. The reaction of with H2O/H2SO4 also gives D. However, the reaction of C with BH-THF,...
6. An organic compound U with molecular formula C19H38 gave 2, 6, 12, 14- tetramethylpentadecane on hydrogenation. Ozonolysis of U gave propanone and a 16- carbon aldehyde V as products. Give the structures of U and V and provide the name for U. 7. An unknown hydrocarbon Q has a formula CaH12. Q Reacts with osmium tetroxide to give a diol R. When oxidized with KM O4 in an acidic medium, Q gives two products. One product is propanoic acid...
identify the preferred site(s) of electrophilic attack on the following compound 1-CH-04 >> ringt r ing 2 A) ortho para positions on ring 1 B) meta position on ring 2 C) meta position on ring 1 D) orthopara positions on ring 2 2) The major products) in the nitration of benzoic acid isare) A) nitrobenzene. B) nitroben ene and para-nitrobenzoic acid. C) mixture of the and pre-nitrobenzoic acid. D -nitrobenzoic acid. 3) What is the electrophile in the Friedel-Crafts alkylation...
please also show the steps. Thanks!
IV. Homework Assignments Chemistry 421 HWW Fall 2012 Pick the most correct answer (show your work!): 1. Which molecule is anti aromatic? 2. Which is another name for vinylbenzene? a. phenol b. aniline c.cumene d. styrene c. anisole 3. Which is another name for CHOPh ? a. phenol b. aniline c.cumene d. styrene e . anisole 4. Which is another name for H2N-Ph? a. phenol b. aniline c.cumene d . styrene e. anisole 5....
Benzene is an organic chemical compound with the molecular
formula
.
In the benzene molecule, carbon atoms form a ring with alternating
single and double bonds connecting them. Thus, each individual
carbon atom forms one
bond with another carbon atom and one
and one
bond with another carbon atom. Each carbon atom also forms
one
bond with a hydrogen atom.
Identify which types of orbitals overlap to form the bonds between
the atoms in a benzene molecule.
Drag the appropriate...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
COURSE TITE & CODE-Organic Chemistry-II (CHEM3201) EXERCISE NO-1 Exercise: 1. How is classification of amines different from that of alcohols? Exercise: 2. Amines are more basic than comparable alcohols. Exercise: 3. How will you distinguish between (a) Aniline and methyl amine (b) Di-methyl amine and tri-methyl amine. Exercise: 4. Write structure and IUPAC name of The amide which gives propanamine by Hofmann bromamide reaction (ii) The salt which gives methylene cyclohexene & trimethylamine by the Hoffman elimination reaction. Exercise: 5....
2. An organic compound E has the molecular formula C12Hi7NO gives spectroscopic data as follow: a) IR (KBR Disc): Amux 3296, 1642 cm b) 'H NMR (CDCl) : 6 0.93 (, 3H); 1.48 (d, 3H); 1.66 (sextet, 2HD) 2.15 (G, 2H); 5.14 (q, 1H):5.74 (broad, s, exchange with D20, 1H); 7.42-7.23 (m, 5H) i3C NMR (CDCl;) : δ 13.7 (q); 19.1 (t); 21.7 (q); 38.8 (t); 48.5 (d); 126.1 (d): 127.3 (d); 128.6 (d); 143.0 (s); 172.0 (s) c) d)...
organic chemistry 3 and 4
III. Two unknowns, X and Y, both having the molecular formula C4HsO, give the following results with four chemical tests. Propose structures for X and Y consistent with this information. (6%) Bromine Na meta Chromic acid Lucas reagent Compound X decolorizes Bubbles Orange to greenNo reaction Compound Y No reaction No reaction No reaction No reaction 國立清華大學命題紙 98學年度 生醫工程與環境科學系 系(所) 乙(環境分子科學) 組碩士班入學考試 科目 有機化學與物理化學 科目代碼 2404 共一3.一頁第一3-一頁,請在【答案卷卡】內作答 IV. (a) Optically active 2-bromobutane undergoes racemization on...
please help me with organic chemistry! i swear we havent
talked about any of this in class.
1) Compounds A, B, and have the same molecular formula. C.H. They all react with H/PtO2 to give the same compound. The reaction of A or B with H2O/HSO, or with BH-THF, followed by treatment with a basic solution of hydrogen peroxide, gives the same compound, namely D. The reaction of with H2O/H2SO4 also gives D. However, the reaction of C with BH-THF,...
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