Concept explainers
Interpretation:
Out of the three
Concept introduction:
In a
In general,
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- For each pair of compounds, predict which compound has a higher boiling point. then explain why that compound has a higher boiling point. (a) isopropyl bromide and n-butyl bromide (b) isopropyl chloride and tert-butyl bromide (c) 1-bromobutane and 1-chlorobutanearrow_forwardGive reasons for the following :(i) Phenol is more acidic than methanol.(ii) The C—O—H bond angle in alcohols is slightly less than the tetrahedral angle (190°28′).(iii) (CH3)3C—O—CH3 on reaction with HI gives (CH3)3C—I and CH3—OH as the main products and not (CH3)3C—OH and CH3—I.arrow_forwardExplain the following behaviours :(i) Alcohols are more soluble in water than the hydrocarbons of comparable molecular masses.(ii) Ortho-nitrophenol is more acidic than ortho-methoxyphenol.arrow_forward
- (c) A series of dialkyl ethers react with excess hydrogen bromide, with the following results. Analyze the ether in each case and write out the complete chemical equations. (1) Ether gives a mixture of bromocyclopentane and 1-bromoethane. (ii) Another ether gives one mole of 1,5-dibromopentane per mole of ether.arrow_forwardThree isomeric pentanols with unbranched carbon chains exist. Which of these isomers, upon dehydration at 180C, yields only 1-pentene as a product?arrow_forwardGive reasons for the following :(i) Ethyl iodide undergoes SN2 reaction faster than ethyl bromide.(ii) (±) 2-Butanol is optically inactive.(iii) C—X bond length in halobenzene is smaller than C—X bond length in CH3—X.arrow_forward
- 11:43 Q1. (a) (c) (d) (b) Two stereoisomers of but-2-ene are formed when 2-bromobutane reacts with ethanolic potassium hydroxide. (i) Explain what is meant by the term stereoisomers. Library Name and outline a mechanism for the reaction of 2-bromo-2-methylpropane with ethanolic potassium hydroxide to form the alkene 2-methylpropene, (CH3)2C=CH₂ Name of mechanism Mechanism (ii) Draw the structures and give the names of the two stereoisomers of but-2-ene. Stereoisomer 1 Name (iii) Name this type of stereoisomerism. Select Name Stereoisomer 2 When 2-bromo-2-methylpropane reacts with aqueous potassium hydroxide, 2-methylpropan-2-ol is formed as shown by the following equation. CH3 H₂C-C-CH3 + KOH Br Page 2 of 14 CH3 H3C-C-CH3 + KBr ОН State the role of the hydroxide ions in this reaction. Write an equation for the reaction that occurs when CH3CH₂CH₂CH₂Br reacts with an excess of ammonia. Name the organic product of this reaction. Equation Name of product 9,284 Photos, 1,166 Videos For You…arrow_forward(a) Draw the structures of the following compounds :(i) 4-Chloropentan-2-one (ii) p-Nitropropiophenone(b) Give tests to distinguish between the following pairs of compounds :(i) Ethanal and Propanal (ii) Phenol and Benzoic acid(iii) Benzaldehyde and Acetophenonearrow_forwardElectrophilic aromatic substitution usually occurs at the 1-position of naphthalene, also called the a position. Predict the major products of the reactions of naphthalene with the following reagents.(a) isobutylene and HF (b) cyclohexanol and BF3 (c) fuming sulfuric acidarrow_forward
- Give reasons for the following: (i) p-nitrophenol is more acidic than p-methylphenol. (ii) Bond length of C—O bond in phenol is shorter than that in methanol. (iii) (CH3)3C—Br on reaction with sodium methoxide (Na+ _OCH3) gives alkene as the main product and not an ether.arrow_forward(a) Account for the following :(i) Electrophilic substitution reactions in haloarenes occur slowly.(ii) Haloalkanes, though polar, are insoluble in water.(b) Arrange the following compounds in increasing order of reactivity towards SN2 displacement:2-Bromo-2-Methylbutane, 1-Bromopentane, 2-Bromopentanearrow_forwardWhen tert-butyl bromide is heated with an equal amount of ethanol in an inert solvent, one of the products is ethyl tert-butyl ether. (a) What happens to the reaction rate if the concentration of ethanol is doubled?arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,