1. What is the purpose of today's lab? 2.Give 2 examples of polar and nonpolar solvents? 3. Why are we testing alkenes and alkynes with bromine? 4. How can aldehydes be oxidized to acids? 5. Why bromine does have to be kept under the hood?
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- QUESTION 18 In the Wittig reaction, what are the two final products? O 1. oxaphosphetane and alkene O2. Triphenylphosphoine oxide and alkyne O 3. Triphenylphosphoine oxide and alkene 4. betaine and alkene QUESTION 19 In organic chemistry synthesis, why are acetal groups important. O1. act as protecting group O 2. good starting materials 3. neutralize strong bases O 4. important in making the Grignard reagentConsider the attached picture: 1. What specific reaction is involved? a. nitration b. alkylation c. halogenation d. acylation 2. What type of reaction is involved? a. Addition Reaction b. Elimination Reaction c. Substitution Reaction 3. What are the products? a. chlorocyclohexane and hydrochloric acid b. chlorocyclobenzene and hydrochloric acid c. 1-chloro-1,3,5-cyclohexatriene and hydrochloric acid d. chlorobenzene and hydrochloric acidD. Ethene 73. The reagent KMN04 is used to completely oxidize acetylene. What is an expected property of the last oxidized form of acetylene? A. It will be soluble in hexane. B. It will exhibit acidic properties. C. It will form precipitate with NaCl. D. It will ionize into carbon and hydrogen. 74. As the molecular weight of alkenes increases, the boiling points also increase. Which of the following factors is best associated to this trend? A. Geometric isomerism B. Surface area C. Dipole interaction D. Structural isomerism 75. Which among the following compounds has the most electronegative carbon in its structure? A. Butyne B. Benzene C. Cyclobutane D. Benzaldehyde 76. Identify the SYSTEMATIC name of the molecule that is illustrated in this item, A. 2,4,6-trinitrotoluene B. 2-methyl-1,3,5-nitrobenzene C. 1-methyl-1,3,5-trinitrobenzene D. 1,3,5-trinitrotoluene CH3 NO2 O2N NO2 77 Identify the SYSTEMATIC name of the molecule that is illustrated in this item. A 1-methylbenzenesulfonic…
- 62. Catenation is a property of the carbon atom which describes its ability to A. bond with other carbon atoms B. form double and triple bonds C. exist in molecules in plant and animal form D. form bonds in its ground state E. share valence electrons with non-polar species 63. The transformation of methane to carbon tetrachloride is an example of A. an electrophilic addition B. a free-radical substitution C. a nucleophilic addition D. an electrophilic substitution E. a unimolecular substitution reaction 64. In the addition of HX (where X is a halogen) to a double bond, the hydrogen atom goes to the carbon that already has more hydrogens. This general observation is given and summarized by A. Hund's rule B. Markovnikov's rule C. Huckel's rule D. Zaitsev's rule E. Cahn-Ingold-Prelog rule 65. Which of the following statements about the carbonyl group of ketones and aldehydes is (are) true? 1. It can attract nucleophiles. II. It can attract electrophiles. III. It tends to undergo addition…1. What functional group is produced when an aldehyde reacts with H2/Pt? A.secondary alcohol B. carboxylic acid C.hemiacetal D. primary alcohol E.alkane F.tertiary alcohol G. alkene 2. What reaction occurs when an aldehyde reacts with H2/Pt to form a primary alcohol? A. Hydration B. Hydration C. Dehydration D. Oxidation E. Reduction( hydrogentation) 3. What reaction occurs when an Ester react with H+/H2O to from a carboxylic acid and alcohol? A. Dehydration B. Reduction ( Hydrogenation) C.Hydrolysis D. Hydration E.oxidationWhy does benzene undergo substitution reactions, but not addition reactions? Select one: O A. Addition to benzene encounters more steric hindrance than substitution. O B. Addition reactions destroy the stable aromatic ring of benzene, while substitution reactions preserve it. OC. A benzene molecule has three distinct C=C's that are conjugated with each other. This conjugation blocks any addition that tries to occur. OD. Addition reactions produce a more unstable carbocation intermediate than substitution reactions. US ☐ Mar 16 6:23
- 4. MAINIDEA Compare and contrast alkyl halides and aryl halides. 5. Draw structures for the following molecules. a. 2-chlorobutane c. 1,1,1-trichloroethane b. 1,3-difluorohexane d. 1-bromo-4-chlorobenzene 6. Define functional group and name the group present in each of the following structures. Name the type of organic compound each substance represents. a. CH3CH,CH2OH b. CH;CH,F c. CH;CH,NH2 7. Evaluate How would you expect the boiling points of propane and 1-chloropropane to compare? Explain your answer. d. CH3C- OH 8. Interpret Scientific Illustrations Examine the pair of substituted hydrocarbons illustrated at right, and decide whether it represents a pair of optical isomers. Explain your answer.1. What is the parent aromatic structure of this compound? (Please refer to the first image attached.) A. Napthalene B. Antharacene C. Benzopyrene D. Phenanthrene 2. What is the name of this compound? (Please refer to the second image attached.) A. o-cresol B. 3-ethylphenol C. 3-ethylphenol D. 2-methylphenol 3. Ingestion of this low molecular weight alcohol may cause blindness due to the production of formaldehyde A. Methanol B. Ethanol C. Diols D. Aromatic Alcohols8. Which statement regarding oxidation and reduction is false? A. An alkyne is more oxidized than alkene. B. A ketone is more oxidized than an ester C. A carboxylic acid is more oxidized than an alcohol D. Fe³+ is more oxidized than Fe²+ E. All of the above statements are true.
- Consider the reaction in the attached picture: 1. The reaction is an example of ______. a. Addition reaction b. substitution reaction c. elimination reaction 2. The reaction shows _________ a. Oxidation of alcohol to produce an alkene b. Dehydration of alcohol to produce an alkyne c. Dehydration of alcohol to produce an alkene1. 1-Ethoxy-2-methylpropane A. Acid anhydride B. Acid chloride C. Ether D. None of the choices 2. C8H16 A. Alkane B. Alkene C. Cycloalkane D. Two of the choices 3. How many CH2 is present in this compound? (Please refer to the timage attached.) A. 6 B. 5 C. 4 D. 37. C=C. A hydrocarbon that contains a -C=C- or the above group. Oa. addition reaction Ob. aliphatic compound C. alkene Od. alkyne e. aromatic hydrocarbon f. hydration g. hydrogenation h. monomer i. phenyl group j. polycyclic aromatic hydrocarbon Ok. polymer O1. unsaturated hydrocarbon