Concept explainers
(a)
Interpretation: Whether the statement that the benzene does not undergo addition reactions as that of
Concept introduction: Benzene is a cyclic compound with continuous delocalizing electron cloud in the structure referred to as resonance.
(b)
Interpretation: Whether the statement that the defining feature of aromatic compound is that they do not show addition reactions being highly unsaturated should be stated true or false.
Concept introduction: Benzene is a cyclicaromatic compound with continuous delocalizing electron cloud in the structure referred to as resonance.
(c)
Interpretation: Whether the statement that nitration reaction of benzene is referred as addition of
Concept introduction: Nitration refers to the process of adding a nitrate group to a compound.
(d)
Interpretation: Whether the statement that halogenation in alkene is said to be an addition reaction whereas in arene is said to be a substitution reaction should be stated as true or false.
Concept introduction: Halogen is the process of attaching the halogen element such as
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Introduction to General, Organic and Biochemistry
- This question is about the chemistry of alkenes, which are unsaturated hydrocarbons. (a) State what is meant by the term unsaturated as applied to a hydrocarbon. (1) (b) An organic compound, X, is an unsaturated hydrocarbon with molecular formula CH₂. (i) Draw the displayed formulae and give the names of two molecules with molecular formula C₂H, which are E/Z isomers. (3) Isomer 1 Isomer 2 Name: Name:arrow_forwardA certain hydrocarbon has a molecular formula of C5H8. Which of the following is not a structural possibility for this hydrocarbon? (a) It is a cycloalkane. (b) It contains one ring and one double bond. (c) It contains two double bonds and no rings. (d) It is an alkyne.arrow_forwardAnswer true or false. (a) Alkenes and alkynes are nonpolar molecules. (b) The physical properties of alkenes are similar to those of alkanes of the same carbon skeletons. (c) Alkenes that are liquid at room temperature are insoluble in water and when added to water, will float on water.arrow_forward
- Give the structural formulae and name the functional groups of the following compounds. (a) 3-chlorobut-1-ene Name the functional group: (b) butanedioic acid Name the functional group: (c) propanamide Name the functional group: (d) 3-methylbutanal Name the functional group:arrow_forward5.Write the structural formula of the ester that, when hydrolyzed, would yield the following:(a) methanol and propanoic acid(b) 1-octanol and acetic acid (c) ethanol and butanoic acidarrow_forwardWrite structural formulas for each of the following:arrow_forward
- 5. Give the structural formulae and name the functional groups of the following compounds. (a) 3-chlorobut-1-ene (b) butanedioic acid Name the functional group: (c) propanamide Name the functional group: (d) 3-methylbutanal Name the functional group: Name the functional group:arrow_forwardTRUE OR FALSE (a) Both ethylene and acetylene are planar molecules. (b) An alkene in which each carbon of the double bond has two different groups bonded to it will show cis-trans isomerism. (c) Cis-trans isomers have the same molecular formula but a different connectivity of their atoms. (d) Cis-2-butene and trans -2-butene can be interconverted by rotation about the carbon–carbon double bond. (e) Cis-trans isomerism is possible only among appropriately substituted alkenes. (f) Both 2-hexene and 3-hexene can exist as pairs of cis-trans isomers. (g) Cyclohexene can exist as a pair of cis-trans isomers. (h) 1-Chloropropene can exist as a pair of cis-trans isomers.arrow_forward(a) Alkenes are relatively stable compounds but are more reactive than alkanes and serve as a feedstock for the petrochemical industry because they can participate in a wide variety of reactions. Predict the products obtained from following reaction. Write the chemical reaction and name the products according to IUPAC system. (i) the reaction of 3-ethyl-3-methyl-1-pentene with hydrogen bromide (ii) the reaction of 3-ethyl-2-pentene with hydrogen bromidearrow_forward
- (1) Write a complete chemical equation showing reactants, products, and catalysts needed (if any) for the following reaction and (2) Draw and name the organic compound found in every reaction. (a) Complete hydrogenation of 2-Methylhexa-1,5-diene (b) Complete halogenation (Br2) of 3-Ethyl-2,2-dimethylhept-3-ene (c) Reaction of (4E)-2.4-Dimethylhexa-1,4-diene with a mole of water (d) Reaction of cis-3,3-Dimethyl-4-propylocta-1,5-diene with two mole of HBr (e) Reaction of trans-1-Bromo-3-chlorocyclopentane with potassium hydroxide (f) Formation of Gilman reagent using isopropyl bromide (g) Ozonolysis of 3,3-Dimethyloct-4-yne (h) Complete halogenation (Cl2) of 3-Ethyl-5-methyl-1,6,8-decatriyne (i) Partial hydrogenation using Lindlar's Catalyst 2,2,5,5-Tetramethylhex-3-yne (i) Reaction of 3.4-Dimethylcyclodecyne with sodium amidearrow_forwardWhich compounds exhibit geometric isomerism? Draw andname the two isomers in each case:(a) 1-pentene(b) 2-pentene(c) 1-chloropropene(d) 2-chloropropenearrow_forwardDraw complete structural diagrams of the following compounds. (a) 2-methyl,pent-2-ene (b) propyne (c) 2,3-dimethyl butane (d) cycloheptanearrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning