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Q3) Which of the following alkenes is capable of forming cis-trans isomers? a. (CH3)2 CH2 b....
3.6: Which of the following compounds can exist as cis–trans isomers? Draw each cis–trans pair. (a) CH3CH=CH2 (b) (CH3)2C=CHCH3 (c) ClCH=CHCl (d) CH3CH2CH=CHCH3 (e) CH3CH2CH=C(Br)CH3 (f) 3-Methylhept-3-ene The answer is c, d, e ,f but I'm not sure how it works
23) For which of the following alkenes will cis- and trans- isomers not exist? CH3 H₃ C C H₂C CH3 H3CH2C-CH3 Hac нсінсін сня сі" A) a) only (B) only C) both a) and c) D) d) only E) both c) and d)
Which statement about alkanes, alkenes, and alkynes is not correct? Select one: a. Cis and trans stereoisomers occur in both alkenes and alkynes. b. When they have the same number of carbon atoms, branched alkanes have lower melting and boiling points than normal alkanes. c. Alkenes and alkynes, but not alkanes, undergo addition reactions. d. The melting and boiling points increase as the number of carbon atoms in a normal alkane increases. e. Alkanes are much less reactive than alkenes...
Chapter 11: 1. What is a prime rule in naming alkenes? a. Find the longest carbon chain. b.Find the longest carbon chain containing the alkene. c. Find whether the alkene has a cis- or trans- configuration. d.Find how far the alkene functionality is from either end. 2. What is the IUPAC name of the following alkene? a. cis-5-methyl-2-heptene b. trans-2-ethyl-4-hexene c. trans-5-methyl-2-heptene d. trans-3-methyl-5-heptene 3. What is the hybridization, geometry, and bond angle of the carbon marked by an asterisk?...
Which of the following has 2 elements of unsaturation? CH3-CH2-CECH (A) LI all of these ( DE) Which of the following best describes the geometry about the carbon-carbon double bond in the alkene below? сно A) E НО (B) Z (C) neither Enor Z 3. Which of the following alkenes violates Bredt's rule? (A) What is the name of the following molecule? (A) 2,6-dimethyl-1,3,5-octatriene (C) 6-ethyl-2-methyl-1,3,5-heptatriene (B) 3,7-dimethyl-3,5,7-octatriene 2,6-dimethyl-1,3,5-octene Which of the following is not capable of showing E-Z isomerism?...
3) For which of the following alkenes will cis- and trans-isomers not exist? H₂C C H₂O CH₂ H₃C H₂C- CH₂ H₃C CH₃ H C F G H CH I a A) a only B) b only C) both a and c D) d only E) both c and d 4) Provide the proper IUPAC name for the alkene shown below. CH, CH CC H CHỊ CH(CH3 ) A) (E)-1,2-dimethyl-1-heptene B) (E)-3,5-dimethyl-2-hexene C) (Z)-1,2-dimethyl-1-heptene D) (2)-3,5-dimethyl-2-hexene E) none of the above...
Which of the following alkenes can exist as cis-trans isomers? 3-Methyl-2-hexene 1-Heptene 2-Methyl-2-hexeue 2-Heptene 3-Heptene
QUESTION 2 Which compound is NOT capable of cis-trans isomerism? BE CH3 Br Br Br HgC Hyd o H₃C Br H₂C нус CH₂ H H. Click Save and submit to save and submit Chick Save an all ansvers
Which of the following compounds can have cis and trans isomers? 2-Methyl-2-butene Propene 0 1-Butene 1,2-Dichloro-1-Bu What is the correct molecular formula of 2,4-Diethyltouleno OCHA 0 C₂ H₂2 G H C:oH20 18 Which of the following compounds can have cis and trans isomers? 1-Butene 2-Methyl-2-butene 1,2-Dichloro-1-Butene Propene CH3CHBr2 is obtained from O Reaction of ethyne with one mole of HBr O Reaction of ethyne with one mole of Br2 Reaction of ethyne with two moles of Br2 Reaction of ethyne...
1. Describe properties about alkenes and alkynes. 2. The two stereoisomers of l-bromo-1,2-dichloroethene cannot be designated as cis and trans in the normal way because the double bond is trisubstituted. They can, however, he given (E) and (Z) designations. Write a structural formula for each isomer and give each the proper designation 3. Studies of numerous alkenes reveal a pattern of stabilities that is related to the number of alkyl groups attached to the carbon atoms of the double bond....