5 Alkenes are unsaturated hydrocarbons. They show structural isomerism. Alkenes take par in addition reactions and form polymers. (a) Structural isomers have the same molecular formula but different structural formulae Give an example of structural isomerism. molecular formula . two structural formulae (b) Ethene reacts with each of the following. Give the name and structural formula of each product. (i) steam name of product. structure of product (ii) hydrogen name of product . structure of product

5 Alkenes are unsaturated hydrocarbons. They show structural isomerism. Alkenes take par in addition reactions and form polymers. (a) Structural isomers have the same molecular formula but different structural formulae Give an example of structural isomerism. molecular formula . two structural formulae (b) Ethene reacts with each of the following. Give the name and structural formula of each product. (i) steam name of product. structure of product (ii) hydrogen name of product . structure of product

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter6: Covalent Bonding

Section: Chapter Questions

Problem 24QRT

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Give the molecular formula of a hydrocarbon containingsix carbon atoms that is (a) a cyclic alkane, (b) a cyclicalkene, (c) a linear alkyne, (d) an aromatic hydrocarbon.
(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 bromide
Indicate whether each statement is true or false. (a) Pentanehas a higher molar mass than hexane. (b) The longer the linearalkyl chain for straight-chain hydrocarbons, the higherthe boiling point. (c) The local geometry around the alkynegroup is linear. (d) Propane has two structural isomers.
Aldehydes and ketones can be named in a systematic way bycounting the number of carbon atoms (including the carbonylcarbon) that they contain. The name of the aldehyde orketone is based on the hydrocarbon with the same number ofcarbon atoms. The ending -al for aldehyde or -one for ketoneis added as appropriate. Draw the structural formulas for thefollowing aldehydes or ketones: (a) propanal, (b) 2-pentanone,(c) 3-methyl-2-butanone, (d) 2-methylbutanal.
A 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.
a) True or false: Alkenes undergo addition reactions andaromatic hydrocarbons undergo substitution reactions.(b) Using condensed structural formulas, write the balancedequation for the reaction of 2-pentene with Br2and name the resulting compound. Is this an addition ora substitution reaction? (c) Write a balanced chemicalequation for the reaction of Cl2 with benzene to make paradichlorobenzenein the presence of FeCl3 as a catalyst. Isthis an addition or a substitution reaction?
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.(Use condensed structural formula) (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
(a) What structural feature is associated with each type of hydrocarbon: alkane, cycloalkane, alkene, and alkyne?(b) Give the general formula for each type.(c) Which hydrocarbons are considered saturated?
(a) Crude oil is composed mainly of alkanes, which are saturated hydrocarbons. State what is meant by the term hydrocarbon. (ii) State what is meant by the term saturated, as applied to a hydrocarbon (b) Crude oil can be separated into the fractions listed in the table below. Name of fraction Number of carbon atoms 1-4 4 12 Naphtha 7- 14 11- 15 15 - 19 20 - 30 Fuel oil 30 – 40 Name the process used to obtain these fractions from crude oil. (ii) Complete the table by naming the missing fraction. 5. The following compounds are present in petroleum. CH,
Answer 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.
(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 amide
All about Alkene, Alkyne and Alkyl halides(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) Ozonolysis of 3,3-Dimethyloct-4-yne(B) Complete halogenation (Cl2) of 3-Ethyl-5-methyl-1,6,8-decatriyne(C) Partial hydrogenation using Lindlar’s Catalyst 2,2,5,5-Tetramethylhex-3-yne