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Water as Reactant
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- 3. Draw the structure of the following alkenes. Some of these compounds can show isomerism, and some cannot. Indicate which among these can show cis and trans isomers. a. hex-3-ene b. buta-1,3-diene c. 2,3-dimethylpent-2-ene 4. Draw the structure of the following alkenes. Some of these compounds can show isomerism, and some cannot. Indicate which among these can show cis and trans isomers. a. 3-ethylhexa-2,4-diene b. pent-1,3-diene c. 3,7-dichloroocta-2,5-diene1. Which of the following compounds are isomers of each other? I. 3-hexene II. Cyclohexane III. 2,3-dimethyl-2-butene IV. 2-methyl-2,3-pentadiene a. I and II b. II and IV c. I, II, III d. I, II, III, IV 2. Which of the following does not contain a carbonyl group? A. CH3CH2CH2COCH2CH3 B. CH3CH2CH2COOCH3 C. CH3CH2CH2CHOHCH2CH3 D. CH3CH2CH2CONH2CH3Identify the organic functional group of the reactant and the reaction type then predict the functional group(s) of the product(s).The reactant is a(n)a. aromatic ketoneb. aromatic aldehydec. aromatic amided. aromatic alcohole. phenolf. aromatic esterg. aromatic carboxylic acidThe reaction type isa. hydrolysis (in acid)b. hydrolysis (in base)c. amide synthesisd. esterificatione. hydrationf. dehydrationThe product should be a(n)a. carboxlyate ion and aromatic amineb. carboxylate ion and ammonium ionc. carboxylic acid and aromatic alcohold. carboxylic acid and phenole. carboxylic acid and phenoxide ionf. carboxylic ion and aromatic alcohol
- 7. kot The single bond between the carbonyl carbon and oxygen in the group. а. carboxyl Ob. carboxylate ion C. carboxylic acid Od. carboxylic acid anhydride e. carboxylic ester Of. condensation polymerization g. dimer h. ester i. esterification j. ester linkage Ok. fatty acid O1. saponification24. What is the major product of the following reaction? o A. I B. II C. III D. IV 1. H- 2. H₂O OH ...OH OH + enantiomer III IV OHC. cyclohexyl alcohol D. isoamyl alcohol 38. An aromatic ring should satisfy Huckel's rule, wherein the number of electrons participating in the cyclic conjugation should be equal to 4n +2. Which of the following cyclic structures does NOT obey Huckel's rule? A. Cyclobutadienyl dianion B. Tetrahydrofuran ring C. Pyrimidine ring structure D. Cyclopropene structure 39. Why is ethanal incapable of forming a hydrogen bond with another ethanal molecule despite exhibiting a bond dipole in the C=O bond? A. The oxygen atom is partially reactive due to the strong bond dipole. B. The carbon atom does not form a highly polar bond with hydrogen. C. The oxygen atom is sp2 hybridized with almost 67% p character. D. Oxygen exhibits resonance with carbon leading to bond stability. 40. What is the role of H+ ions in the nucleophilic substitution of alcohols using hydrogen halides? A. Protonation of -OH group B. Stabilization of carbocation C. Activation of oxygen radical D. Removal of an alkyl group…
- D. 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…Why does benzene undergo substitution reactions, but not addition reactions? Select one: OA. A benzene molecule has three distinct C=C's that are conjugated with each other. This conjugation blocks any addition that tries to occur. O B. Addition reactions destroy the stable aromatic ring of benzene, while substitution reactions preserve it. Addition to benzene encounters more steric hindrance than substitution. OC. O D. Addition reactions form a more unstable carbocation intermediate than substitution reactions.4. Write down the structure of the product. Br 2 КОН ethanol Br
- Does the bromine test show that trans fats are present in the various substances (vegetable oil, cottonseed oil, melted shortening, 1-hexene) tested? a. No, because vegetable oils had partially hydrogenated oils. b. Yes, because vegetable oils had partially hydrogenated oils. c. Yes, because these all contain trans fats. d. No. The bromine will react the same way with both cis and trans C=C bonds. e. Yes, because the label on the shortening said it contained trans fats.2. What type of chemical reaction is illustrated by the following reaction? CH3OOCH3 + H2O ⎯→ CH3OOH + CH3OH a. oxidation/reduction b. substitution c. neutralization d. hydrolysis e. dehydration synthesis (condensation)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.oxidation
