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Concept explainers
(a)
Interpretation:
The structure of the carbonyl compound
Concept introduction:
In
(b)
Interpretation:
The structure of the carbonyl compound
Concept introduction:
In organic chemistry, the carbonyl compound is a class of functional group which contains a
(c)
Interpretation:
The structure of the alcohol compound
Concept introduction:
In organic chemistry, alcohol is a class of functional group which contains a hydroxyl group. They are represented by a formula
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Chapter 22 Solutions
EBK ORGANIC CHEMISTRY
- (b) 3-methyl-2-butanol reacts with concentrated sulphuric acid to form 2-methyl-2- butene. Write the mechanism for the reaction.arrow_forwardIn each of the following reactions, two possible organic products can be formed. Draw both organic products in each case and then circle the one formed in greatest quantity in each case. HC (a) 1) NaH, 2) acid (b) CH,CH,OH (c) CH,CH,OH NH2 (d) Oarrow_forwardDraw the structure of the predominant form of CF3CH2OH (pK a = 12.4) at pH = 6.arrow_forward
- Give 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_forwardGive the chemical tests to distinguish between following pair of compounds : (i) Propanol and propanone (ii) Ethyl acetate and methyl acetate (iii) Benzaldehyde and benzoic acid (iv) Benzaldehyde and acetaldehyde (v) Formic acid and acetic acid (vi) Propanal and propanol (vii) Ethanoic acid and ethylethanoatearrow_forwardAn aromatic compound K, whose molecular formula is C8H11N, is examined in the laboratory to elucidate its structure. The following observations were made: A) Compound K is soluble in dilute hydrochloric acid but insoluble in sodium hydroxide solution. B) Treatment of compound K with excess potassium hydroxide and benzenesulfonyl chloride, C(6)H(5)SO(2)Cl, results in the formation of a heterogeneous mixture. The NMR spectrum of compound K is shown below. C) Compound K when treated with acetic anhydride[CH3-C(O)-O-C(O)-CH3], gives compound L, whose molecular formula is C(10)H(13)ON. Compound L is insoluble in dilute acid or dilute base at room temperature, heating compound L in dilute acid or base, however, regenerates compound K. D) When compound L is heated with a mixture of concentrated nitric acid and sulfuric acid, a single product, compound M, with the molecular formula C(10)H(12)O(3)N(2) is formed in excellent yields. On the basis of these observations draw the structures of…arrow_forward
- Dimethyl disulfide, CH,S–SCH3, found in the vaginal secretions of female hamsters, acts as a sexual attractant for the male hamster. Write an equation for its synthesis from methanethiol.arrow_forwardWrite the reagent or draw structures of the starting material or organic product(s) in the following reactions. If more than one product is formed, identify the major product where possible. (a) (b) HO OH OH H2SO4 ? Cl₂ ? FeCl3arrow_forwardWrite chemical equations of the reactions of ethanoic acid with(a) Sodium(b) Sodium carbonate(c) Ethanol in the presence of conc. H2SO4arrow_forward
- (a) What is the K(b) of the benzoate ion, C₆H₅COO?(b) What is the Kₐ of the 2-hydroxyethylammonium ion,HOCH₂CH₂NH₃⁺(pK(b) of HOCH₂CH₂NH₂=4.49)?arrow_forward(a) A hydrocarbon isolated from fish oil and from plankton was identified as 2,6,10,14-tetramethyl-2-pentadecene. Write its structure.(b) Alkyl isothiocyanates are compounds of the type RN C S. Write a structural formula for allyl isothiocyanate, a pungent-smelling compound isolated from mustard.(c) Grandisol is one component of the sex attractant of the boll weevil. Write a structural formula for grandisol given that R in the structure shown is an isopropenyl group.arrow_forwarda) If the pH value of an aqueous solution of trimethylamine [(CH3)3N] is 10.75, what should be the molarity of this solution? (CH3)3N + H2O ↔ (CH3)3NH+ + OH-, Kb = 6,3 × 10-5 b) What will be the pH of the solution prepared by dissolving 8.35 g of aniline hydrochloride (C6H5NH3+Cl-) in 750 mL of 0.215 M aniline (C6H5NH2)? Is this solution an effective buffer? Explain (Kb = 7,4 × 10-10 for aniline, C: 12.0 g / mol, H: 1.0 g / mol, N: 14.0 g / mol, Cl: 35.4 g / mol) .arrow_forward
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