Which of the following ethers are symmetrical? a. CH3CH3OCH2CH3 b. (CH3)2CHOCH2CH(CH3)2 c. CH3OCH3 d. CH2CH3OCH2CH3 e....
Which of the following ethers are symmetrical?
a. CH3CH3OCH2CH3
b.
(CH3)2CHOCH2CH(CH3)2
c. CH3OCH3
d. CH2CH3OCH2CH3
e. A, C, and D
Homework Answers
Ether havind same alkyl group both sides of oxygen are symmetrical.so
A ,C D are symmetrical ethers
(e) is correct option
Add Answer to:
Which of the following ethers are symmetrical?
a. CH3CH3OCH2CH3
b.
(CH3)2CHOCH2CH(CH3)2
c. CH3OCH3
d. CH2CH3OCH2CH3
e....
30) Which of the following compounds is (are) symmetrical ethers? B)Only D) Only I, IIl, and...
30) Which of the following compounds is (are) symmetrical ethers? B)Only D) Only I, IIl, and IV A) Only III and IV C) Only I 31) What is the IUPAC of the following compound? но B) 1,1,4-Trimethyl-2-cyclohexanol D) 3,3,6-Trimethylcyclohexanol A) 2,5,5-Trimethylcyclohexanol ) 1,4,4-Trimethyl-2-cyclohexanol 32) What is the IUPAC of the following compound? он A) (R)-2,2-Dimethyl-3-pentanol C) (S)-2,2-Dimethyl-3-pentanol B) (S)-1-tert-Butyl-1-propanol D) (R)-4,4-Dimethyl-3-pentanol 33) What is the common name of the following compound? A) Methyl sec-butyl ether C) Isobutyl methyl ether B)...
Which is the best method for the synthesis of tert-butyl methyl ether? A. (CH3)3CONa+ CH3OCH3 ?????...
Which is the best method for the synthesis of tert-butyl methyl ether? A. (CH3)3CONa+ CH3OCH3 ????? B. CH3ONa + (CH3)3COH ????? C. CH3OH + (CH3)3COH + H2SO4 with heat ????? D. CH3ONa+ (CH3)3CBr ????? E. (CH3)3CONa+ CH31 ?????
Organic Chem - Naming Ethers. Please help... PROBLEM 18-1 Name the following ethers: (a) CH3 CH3...
Organic Chem - Naming Ethers. Please help...
PROBLEM 18-1 Name the following ethers: (a) CH3 CH3 CH3CHOCHCH3 (c) ^ OCH3 ochọCH?CHE Br (d) LOCH3 (f) H2C=CHCH2OCH=CH2 (e) CH3 CH3CHCH2OCH2CH3
Identify the compound with the lowest boiling point. A) CH3OCH3 B) CH3CH2CH3 C) CH3CHO D) (CH3)2O...
Identify the compound with the lowest boiling point. A) CH3OCH3 B) CH3CH2CH3 C) CH3CHO D) (CH3)2O E) CH3CN * I need help understanding why the answer is B, when E has a lower molar mass. Also, I was under the impression that linear molecules such as B, have increased dispersion forces, and would ultimately have a higher boiling point.
What is/are the missing reagent(s) (A) in the following reaction? CH3—CH, —C—OH - CH3-CH2 ——o—chy CH3OCH3...
What is/are the missing reagent(s) (A) in the following reaction? CH3—CH, —C—OH - CH3-CH2 ——o—chy CH3OCH3 CH3OH/H/heat O H2SO4 CrOz/H+ 1)CN 2)H30+/heat
Which of these molecules can form H-bond forces? A. CH3F B. HBr C. H2 D. CH3OCH3...
Which of these molecules can form H-bond forces? A. CH3F B. HBr C. H2 D. CH3OCH3 E. CH3OH
21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D)...
21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D) - E) CH3OCH3 22) An unknown compound, C9H12, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H) What is the structure of the compound? A CH,CH,CH, v. CHA CH; CH2CH3 СН3 V. CH CH3 CH CHCH3 СН3 CH3 A) 1 B) II C) III D) IV E) V
Complete the following reactions which form ethers (A and B) and cyclic ethers (C-E) as major...
Complete the following reactions which form ethers (A and B) and cyclic ethers (C-E) as major products. SHOW MECHANISMS FOR ALL A) (1R, 2R)1,2-dimethylpropan-1-ol (2 has a dash Methyl and 1 has a wedge methyl) reacts with NaH/CH3CH2Br B) 3-methylpent-3-ene reacts with Hg(OAc)2/ CH3CH2OH, NaBH4 C) 2-cyano-6-methyl cyclohept-1,4,6-triene-4-al reacts with MCPBA/CH2Cl2 D) (2R,3S)- 2-bromo-butan-3-ol reacts with NaOH E) Cyclobutyl as the base chain with (CH2OH attached at Carbon 1 and CH2CH2Br attached at carbon 2) reacts with KOH F) 2-methylcyclohexene...
17) Which of the following is a secondary halide? A) CICH2CH2C(CH3)3 B) CICH2CH2CH(CH3)2 C) (CH3)2CCICH2CH3 D)...
17) Which of the following is a secondary halide? A) CICH2CH2C(CH3)3 B) CICH2CH2CH(CH3)2 C) (CH3)2CCICH2CH3 D) (CH3)3CCHCICH3 E) CICH2C(CH3)CH2CH3 17) What is the IUPAC name of the compound shown below? нс, CH2CH3 С" A) (15,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane B) (IR,3S)-1,3-dichloro-1-methyl-3-ethylcyclopentane C) (IR.45)-1,4-dichloro-1-ethyl-4-methylcyclopentane D) (IR,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane E) (IS3R)-1,3-dichloro-3-ethyl-1-methylcyclopentane 18) What type of intermediate is present in the SN2 reaction of cyanide with bromoethane? A) carbocation B) free radical C) carbene D) carbanion E) This reaction has no intermediate 19) Which of the following alkyl chlorides...
Identify reaction mechanisms. 1. NaHCO3 CO2Nal CH3 CH3 2. CH3 a-Proton transfer b-Lewis acid/base c- Electrophilic...
Identify reaction mechanisms.
1. NaHCO3 CO2Nal CH3 CH3 2. CH3 a-Proton transfer b-Lewis acid/base c- Electrophilic addition f-S^1 Nucleophilic substitution g-SN2 Nucleophilic substitution d-El Elimination e E2 Eliminatior The rections above involve synthesis or reactions of alcohols and ethers Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - g for your answers
30) Which of the following compounds is (are) symmetrical ethers? B)Only D) Only I, IIl, and IV A) Only III and IV C) Only I 31) What is the IUPAC of the following compound? но B) 1,1,4-Trimethyl-2-cyclohexanol D) 3,3,6-Trimethylcyclohexanol A) 2,5,5-Trimethylcyclohexanol ) 1,4,4-Trimethyl-2-cyclohexanol 32) What is the IUPAC of the following compound? он A) (R)-2,2-Dimethyl-3-pentanol C) (S)-2,2-Dimethyl-3-pentanol B) (S)-1-tert-Butyl-1-propanol D) (R)-4,4-Dimethyl-3-pentanol 33) What is the common name of the following compound? A) Methyl sec-butyl ether C) Isobutyl methyl ether B)...
Which is the best method for the synthesis of tert-butyl methyl ether? A. (CH3)3CONa+ CH3OCH3 ????? B. CH3ONa + (CH3)3COH ????? C. CH3OH + (CH3)3COH + H2SO4 with heat ????? D. CH3ONa+ (CH3)3CBr ????? E. (CH3)3CONa+ CH31 ?????
Organic Chem - Naming Ethers. Please help...
PROBLEM 18-1 Name the following ethers: (a) CH3 CH3 CH3CHOCHCH3 (c) ^ OCH3 ochọCH?CHE Br (d) LOCH3 (f) H2C=CHCH2OCH=CH2 (e) CH3 CH3CHCH2OCH2CH3
What is/are the missing reagent(s) (A) in the following reaction? CH3—CH, —C—OH - CH3-CH2 ——o—chy CH3OCH3 CH3OH/H/heat O H2SO4 CrOz/H+ 1)CN 2)H30+/heat
21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D) - E) CH3OCH3 22) An unknown compound, C9H12, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H) What is the structure of the compound? A CH,CH,CH, v. CHA CH; CH2CH3 СН3 V. CH CH3 CH CHCH3 СН3 CH3 A) 1 B) II C) III D) IV E) V
17) Which of the following is a secondary halide? A) CICH2CH2C(CH3)3 B) CICH2CH2CH(CH3)2 C) (CH3)2CCICH2CH3 D) (CH3)3CCHCICH3 E) CICH2C(CH3)CH2CH3 17) What is the IUPAC name of the compound shown below? нс, CH2CH3 С" A) (15,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane B) (IR,3S)-1,3-dichloro-1-methyl-3-ethylcyclopentane C) (IR.45)-1,4-dichloro-1-ethyl-4-methylcyclopentane D) (IR,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane E) (IS3R)-1,3-dichloro-3-ethyl-1-methylcyclopentane 18) What type of intermediate is present in the SN2 reaction of cyanide with bromoethane? A) carbocation B) free radical C) carbene D) carbanion E) This reaction has no intermediate 19) Which of the following alkyl chlorides...
Identify reaction mechanisms.
1. NaHCO3 CO2Nal CH3 CH3 2. CH3 a-Proton transfer b-Lewis acid/base c- Electrophilic addition f-S^1 Nucleophilic substitution g-SN2 Nucleophilic substitution d-El Elimination e E2 Eliminatior The rections above involve synthesis or reactions of alcohols and ethers Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - g for your answers
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