Concept explainers
(a)
Interpretation:
The more reactive compound of the given pair has to be stated and explained.
Concept introduction:
Ring strain: A type of instability that exists when bonds in a molecule from angles that are abnormal (deviate from ideal bond angles).
Reaction of
Generally, alkanes are not very reactive. But on heating and irradiated with light of a suitable wavelength radical reaction occurs forming
(b)
Interpretation:
The more reactive compound of the given pair has to be stated and explained.
Concept introduction:
Reaction of
Addition reaction: Alkene reacts with polar reagent (like
Reaction of alkanes:
Generally, alkanes are not very reactive. But on heating and irradiated with light of a suitable wavelength radical reaction occurs forming alkyl halides.
(c)
Interpretation:
The more reactive compound of the given pair has to be stated and explained.
Concept introduction:
Functional group: A group of atoms that gives the behavior of the chemical compounds.
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Chemistry
- 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_forwardGive the molecular formula of a hydrocarbon containingfive carbon atoms that is (a) an alkane, (b) a cycloalkane,(c) an alkene, (d) an alkyne.arrow_forwardIndicate 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.arrow_forward
- A certain hydrocarbon has a molecular formula of C5H8. Which of the following is not a structural possibility for this hydrocarbon: (d) It contains an alkyne O It contains one ring and one double bond (c) It contains two double bonds and no rings O (b) It contains one ring and no double bondsarrow_forward(a) Calculate the standard enthalpy change for the combustion of 1 mol of benzene, C6H61l2, to CO21g2 and H2O1l2.(b) Compare the quantity of heat produced by combustion of 1.00 g propane with that produced by 1.00 g benzene.arrow_forwardCyclopropane (C3H6, a three-membered ring) is more reactive than most other cycloalkanes.(a) Draw a Lewis structure for cyclopropane.(b) Compare the bond angles of the carbon atoms in cyclopropane with those in an acyclic (noncyclic) alkane.(c) Suggest why cyclopropane is so reactive.arrow_forward
- (a) The compound given below had the following IUPAC name and structural formula dibromocyclopentane C3H6CHBrCHBr (i) What type of isomerism is possible in the organic compound? (ii) Draw all the pairs of possible isomers and name them.arrow_forward(a) What is meant by the term isomer ? (b) Among the four alkanes, ethane, propane, butane, and pentane, which is capable of existing in isomeric forms?arrow_forwardGive the IUPAC names of structures containing two carbon atoms for the following classes of compounds: (a) alkene: (b) alkyne: (c) alkyl halide: d) alcohol:arrow_forward
- Give the IUPAC names of structures containing two carbon atoms for the following classes of compounds: (a) ether: (b) aldehyde: (c) carboxylic acid: (d) ester: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_forwardWrite 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 waterarrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning