The skeletal line formula for a branched alkene is shown below. (i) What is the molecular formula of this compound? (ii) How many carbon atoms are in the longest chain, ignoring the double bond? (iii) What is the longest chain incorporating both carbons of the double bond? (iv) How many substituents are on this chain? (v) Give the IUPAC name for this compound.

The skeletal line formula for a branched alkene is shown below. (i) What is the molecular formula of this compound? (ii) How many carbon atoms are in the longest chain, ignoring the double bond? (iii) What is the longest chain incorporating both carbons of the double bond? (iv) How many substituents are on this chain? (v) Give the IUPAC name for this compound.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter21: Organic And Biological Molecules

Section: Chapter Questions

Problem 7RQ

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1. (a) Draw the structures of the eight isomeric pentyl alcohols, C3H11OH. (b) Name each by the IUPAC system and by the carbinol system. (c) Label each as primary, secondary, or tertiary, (d) Which one is isopentyl alcohol? tert-Pentyl alcohol? (e) Give the structure of a primary, a secondary, and a tertiary alcohol of the formula C,H13OH.
(b) Draw structural formulas of at least two alkynes of each molecular formula.(1) C6H10
2. a) Explain what structural feature of the double bond is required for an alkene to exhibit cis-trans (geometric) isomerism? b) Which of the following alkenes can exhibit cis-trans isomerism? If the molecule exhibits cis- trans isomerism, draw and name the associated isomer. 1- pentene CH2=CHCH2CH2CH3 i) ii) 2- pentene CH3CH=CHCH₂CH3 -0
12. Write bond-line structural formulas for (a.) two primary alcohols, (b.) a secondary alcohol, and (c.) a tertiary alcohol-all having the molecular formula CaH100.
Isooctane is the common name of the isomer of C8H18 used as the standard of 100 for the gasoline octane rating: (a) What is the IUPAC name for the compound?(b) Name the other isomers that contain a five-carbon chain with three methyl substituents.
TRUE 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.
Give the IUPAC names of structures containing two carbon atoms for the following classes of compounds: (a) alkene: (b) alkyne: (c) alkyl halide: d) alcohol:
8 5 Alkenes are unsaturated hydrocarbons. They show structural isomerism. Alkenes take part 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
Indicate whether each statement is true or false. (a) Twogeometric isomers of pentane are n-pentane and neopentane.(b) Alkenes can have cis and trans isomers around theCC double bond. (c) Alkynes can have cis and trans isomersaround the CC triple bond.
Draw all possible structure(s) and give the IUPAC systematic name(s) of an alkane or cycloalkane with the formula C8H18 that has only primary hydrogen atoms. Draw the structure(s).
Draw the skeletal (bond-line) structures of all isomers of C4H8O (including configurational isomers) that contain an alkene and an ether. There should be 5 structures.
Draw structures that fit each description and name the functional group in each molecule: (a) two constitutional isomers with molecular formula C5H10O that contain different functional groups; (b) two constitutional isomers with molecular formula C6H10O that contain the same functional group.