Write the equation for the following reactions: a. 2-butene + HCI b. 1,2-dichloro-1-propene + water c. Propyne + oxygen d. 1, 3-pentadiene + bromine e. cis-3,3,4-trimethyl-1-hexene + H₂ p
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- Draw the structure of the following compounds. a. 1-ethyl-3-methylcycloheptane b. Cyclopropylcyclopentane c. 1,1-diethyl-4-(3,3-dimethylbutyl)cyclohexane13. Ethylethanoate and butanoic acid can be classified as A. positional isomers B. chain isomers C. functional isomers D. stereoisomers 14. Which of the following pairs are positional isomers A. trans-1,4-dichlorocyclohexane, cis-1,3-dichlorocyclopentane B. trans 1,4-dichlorocyclohexane, cis-1,4-dichlorocyclohexane C. 2-pentanol, Cyclopentanol D. 1,2-cycohexanediol, 1,3-cycohexanediol 15. Which of the following compounds will have zero dipole moment? A. cis-1,2-dibromoethylene B. 1,1-dibromoethylene C. trans-1,2-dibromoethylene D. all of these 16. Which of the following is not aromatic: A. cyclopentadienyl cation B. cyclopentadienyl anion C. Cyclopropenyl cation D. Cycloheptatrienyl cation 17. Which of the following compounds containing lone pair has the least tendency to donate its electrons? A. the lone pair in pyridine B. the lone pair in furan C. the lone pair in pyrole D. the lone pair in thiopheneWrite the organic structure of the ff. organic compounds. 4-butylheptane 3,3,5-trimethyloctane 2-butyl-5-propylheptane
- 6. Write the structure of the following compounds. a. 4 - ethyl - 2 - hexoneb. 2-ethyl - 3 – pentanoic acidWhat term describes the structural relationship between (2R,3R,4S)-2,3,4-trichloroheptane and (2R,3R,4R)-2,3,4-trichloroheptane? A. enantiomers B. diastereomers OO OO C. constitutional isomers D. not isomers1. Using the grignard reaction of alkanes what is the resulting alkane if the reactant is C4H9Br? a. ethane b. propane c. butane d. pentane 2. Using the grignard reaction of alkanes what is the resulting alkane if the reactant is C5H11F? a. ethane b. propane c. butane d. pentane 3. Using Cl2 in C2H4Cl2 will result in HCl and ______. a. C2H3Cl3 b. C2H4Cl3 c. C2H2Cl3 d. not posible
- 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….Write the equation and write the correct IUPAC name of the product of the ff A. reaction of 4 – methylhexene and HCl B. hydration of 3-bromo-3-heptene C. hydrogenation of 2,3- dichloro-3-octene D. oxidation of 1,2,4-trichloro-2-methyl-3-heptanol.The functional group R carboxylic acid anhydrides. esters. aldehydes. ketones. amides. carboxylic acids. -0-C-R is characteristic of
- 1. 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. CH3CH2CH2CONH2CH3Write a balanced chemical equation for the reaction of ethene with oxygen. O a. C2H4(g) + 302(g) → 2CO2(g) + 2H2O(g) O b. 2C2H2(g) + 502(g) → 4CO2(g) + 2H2O(g) O c. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) O d. C2H4(g) + 202(g) → 2CO2(g) + 2H2(g) O e. 2C2H6(g) + 702(g) →> 4CO2(g) + 6H2O(g)1. 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. 3