Concept explainers
(a)
Interpretation:
The chemical formula for carvone is to be discussed.
Concept introduction:
The chemical formula is the chemical composition of the compounds. It tells about the number and ratio of different atoms present in the given compound.
(b)
Interpretation:
The chiral carbon atom of carvone is to be discussed.
Concept introduction:
The Chiral Centre is an atom, in any compound at which there are four different groups connected to it in such a manner that its mirror image is non-superimposable on it.
(c)
Interpretation:
The aromaticity of carvone is to be discussed.
Concept introduction:
Aromaticity is defined as a property of cyclic, planar structure having ring of resonance bonds along with same set of atoms. The molecule is
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CHEMISTRY-TEXT
- 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_forwardKetene, H2C=C=O, is an important industrial chemical. Predict the products that would be formed when ketene reacts with **hint: Markovnikov addition occurs. (a) ethanol (b) acetic acid (c) ethylamine.arrow_forwardBiphenyl has the following structure.(a) Is biphenyl a (fused) polynuclear aromatic hydrocarbon?(b) How many pi electrons are there in the two aromatic rings of biphenyl? How does this number compare with that for naphthalene?arrow_forward
- Draw the hydrogen bonding that takes place between(a) two molecules of ethanol.(b) two molecules of propylamine.(c) a molecule of dimethyl ether and two molecules of water.(d) two molecules of trimethylamine and a molecule of water.arrow_forwardDraw the structural formula for the following molecules : (a) (b) (c) (d) (e) (f) (g) 1,2-dimethylcyclobutane 2,2-dimethylpropane 1,4-hexadiene toluene ortho-hydroxybenzoic acid methylcyclopropane propanal 2.arrow_forwardGive 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_forward
- Biphenyl has the following structure.(a) Is biphenyl a (fused) polynuclear aromatic hydrocarbon?(b) How many pi electrons are there in the two aromatic rings of biphenyl? How does this number compare with that for naphthalene?(c) The heat of hydrogenation for biphenyl is about 418 kJ>mol (100 kcal>mol). Calculate theresonance energy of biphenyl.(d) Compare the resonance energy of biphenyl with that of naphthalene and with that of two benzene rings. Explain thedifference in the resonance energies of naphthalene and biphenyl.arrow_forward(4) Write the structure of the following compounds from their IUPAC names. (a) ethanamide (b) methylethanoate (c) propanoic acid (d) 2-butanone (5) Write the structure of the following ethers and amines from their common names (a) methyl propyl (b) trimethylamine (6) Decide whether the following alcohols are polar or nonpolar (a) CH3CH2CH2CH2CH2CH2CH2OH (b) CH3CH2OHarrow_forwardDraw structures for the following compounds. Show all of the hydrogen atoms in the molecules. (a) ethanol (b) 2-propanol (c) 2-ethyl-5-methylcyclohexanolarrow_forward
- Compounds with nearly identical molar masses often havevery different physical properties. Choose the compound withthe higher value for each of the following properties, and explainyour choice.(a) Solubility in water: chloroethane or methylethylamine(b) Melting point: diethyl ether or 1-butanol(c) Boiling point: trimethylamine or propylaminearrow_forwardIdentify which of the following statement(s) is/are true. (f) Aldehydes, ketones, carboxylic acids, and esters all contain a carbonyl group. (g) A compound with the molecular formula of C3H6O may be either an aldehyde, a ketone, or a carboxylic acid. (h) Bond angles about the carbonyl carbon of an aldehyde, a ketone, a carboxylic acid, and an ester are all approximately 109.5°. (i) The molecular formula of the smallest aldehyde is C3H6O, and that of the smallest ketone is also C3H6O. (j) The molecular formula of the smallest carboxylic acid is C2H4O2.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
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning