Question 1 1 Point Markovnikov's rule indicates that in the addition of H-I to an alkene, the hydrogen becomes attached to the carbon of the C=C bond that is already bonded to more hydrogens. a. True b. False
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- How many moles of Bra are required to completely halogenate the alkene?A. One moleB. Two molesC. Three molesD. Four moles What is the expected arrangement of the bromine atoms relative to each other amongthe carbon involved in pi bonding?A. anti-conformationB. syn-conformationC. trans-configurationD. cis-configuration What happens to bromine when it is adjacent to an alkene during a chemical reaction?A. Bromine becomes stable. (? kasi before brown siya/acidic tas naging colorless? Jk ewan)B. Bromine becomes polarized.C. Bromine becomes hybridized.D. Bromine becomes acidic. The relative arrangement of bromine atoms in the product is primarily due to:A. ElectronegativityB. RepulsionC. Hydrogen bondingD. Atomic weightWhat is your observation after the reaction?A. A yellow flame is produced.B. Bromine water decolorizes.C. The alkene becomes denser.D. A brown precipitate forms.The following statements (parts a-e) describe a specific reaction along with its regio- and/or stereo-control. Match the reaction conditions below (1-8) that correctly corresponds to the statement. Answer with 1, 2, 3, 4, 5, 6, 7, or 8. 1. Hg(OAC)2, H₂O 2. NaBH Condition 1 Br fioh 5 1. BH3, THF 2. H₂O₂, H₂O, OH- Condition 2 H₂O+ Condition 6 en condition for the reduction of on alkung to a fo الم منم م م مصحلام de H₂ Pd/C Condition 3 HBr Condition 7 alkono 11 to da H₂ Lindlar's cat. Condition 4 NaNha Condition 8 hp10. Which of the following alkenes has the highest molar heat of hydrogenation (ie, releases the most heat upon hydrogenation)? d A. B. C. D.
- Br2 ? How many moles of Br are required to completely halogenate the alkene? A. Three moles B. Four moles C. Two moles D. One mole What is the expected arrangement of the bromine atoms relative to each other among the carbon involved in pi bonding? A. trans-configuration B. anti-conformation C. cis-configuration D. syn-conformation What happens to bromine when it is adjacent to an alkene during a chemical reaction? A. Bromine becomes polarized. B. Bromine becomes acidic. C. Bromine becomes hybridized. D. Bromine becomes stable. The relative arrangement of bromine atoms in the product is primarily due to: A. Hydrogen bonding B. Electronegativity C. Atomic weight D. Repulsion What is your observation after the reaction? A. Bromine water decolorizes. B. A brown precipitate forms. C. The alkene becomes denser. D. A yellow flame is produced.7. Complete the following reactions of alkenes and alkynes by provi missing reactant, reagent or product. Do not rewrite the reaction required3. Which carbon would the Br of HBr add to in the following unsymmetrical alkenes? 1 Problem Set #7 Chemistry 227 а. b. С. d. H3C H3C е. H Н. H3C. TH. CH3 H H H the C=C in the ring do not react with H*
- ● Rank the following alkenes from most to least stable. A 11 B ||| MacBook Air C IV1. Name using IUPAC substitutive nomenclature nules A. В. 2. Circle the molecules that are the meso-fonn trans-1.2-dimethykyclohexane cis-1.3-dimethylcyclonexane trans-1,4-dimethyleyclohexaneWhat is the IUPAC name for the following molecule? Br Select one: O a. 5-allyl-1-bromo-5-ethylcyclohexa-1,3-diene O b. 5-allyl-1-bromo-5-ethylcyclohexa-1,3,5-triene O c. 1-allyl-5-bromo-1-ethylcyclohexa-1,3-diene O d. 1-allyl-5-bromo-1-ethylcyclohexa-1,3-triene O e. 1-allyl-3-bromo-1-ethylcyclohexa-3,5-diene
- which c-h bond has the lowest BDE (bond disassociation energy)?A terminal alkyne (RC=CH) is exposed to excess HBr. What rule should be followed to determine the placement of the halogen atoms in the product? A. Markovnikov rule O B. Hofmann's rule O C. Zaitzev's rule D. Anti-Markovnikov ruleOrganic Chemistry Problems ganic Chemistry Alkane Structure and IUPAC Naming Problem 6: Draw the following molecules in all possible chair conformations. Be sure to include all possible hydrogen atoms. For each molecule circle the conformation that has the lowest potential energy.