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10. Acid chlorides are obtained by treating carboxylic acid with A) HCI C)SOCI, B)CI, D) NaCI

10. Acid chlorides are obtained by treating carboxylic acid with A) HCI C)SOCI, B)CI, D) NaCI

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer Q16, 17, 18

Questions 10-49 DIRECTIONS: Each of the following questions or incomplete statements below is followed by four suggested answers lettered A D. Solect or choose the letters of the best answer to the question or incomptete statement. Que The real 10. Acid chtorides are obtained by treating Carboxylic acid with A) HCI C)SOCI, B) CI D) NaCI Suitabie yield can ckds is slow 227 A) conc B) dif. C) Na DI ca 10. Which one of the following aubstances is the main organic product when CICH COOH Is refluxed with aqueous NaOH?. A) CICH COONa B) HOCH COOH C) OHCH COONA D) NAOCH COOH Arrango the following compounds in order of their increasing strengths as acids putting the weakest first 1) CH CO H. 3) CH CICO H A) 1>2> 3 C) 3>1> 2 17 2) CH,CH,CO H B) 2 > 3>1 What D) 2<1<3 rever A) B) C) D) 11. Which one of the following substances Would be oxidised to 2- methyipropanoi (CH CO C H.) from ethanol and othanoic acid, a acid? A) CH CH CH(OH)CH, B) (CH) CHOH C) (CH.),CHCH,OH D) (CH) CHCHCH OH 12. Which one of the following carboxylic acids is the strongest? A) CHF CH COOH B) CH FCH COOH C) CH CHFCOOH D) CH,FCHFCOOH Questions 18 and 19 In the laboratory proparation of ethylethanate little concentrated sulphunc acid is added to the reaction mixture. Th 25 in 18 What is the purpose of the concentrated sulphuric acid A) to polarised the alcohol B) to inhibit the reaction C) to cause the reaction to go faster D) to acidify the medium is 19. What is the general name for this type of reaction? A) esterification B) ethanoylation C) acylation 13, When phenylmethanoate is hydrolysed by excess NaOH(aq), the products of the reaction D) saponification are 26 The systematic name of the compound with structural formula 20 A) phenoxide ion and methanol B) phenol and methanoate ion C) benzoate ion and methanol D) phonol and methanoic acid HOH %3D 14. is To which of the following classes of organic compounds does HOC H A) ethanedioic acid B) transbutanedioic acid C) transbutenedioic acid D) cis butanedioic acid CH-0-C belong? A) aldehydes C) esters B) carboxylic acid D) Ketones 21. Name the compound with tormula CH CICOCI A) 1, 2 -dichloro ethanone B) chloroethanyl chloride C) 1, 2- dichloro ethanal D) dichloro ethanoyl chloride 15. An ester was reflux with aqueous sodium hydroxide and then distilled. The distillate gave a yellow precipitate on warming wilth iodine in aqueous sodium hydroxide. The residue in the flask gave a white precipitate when dilute hydrochloric acid was added. A possible forumula for the orginal ester is A) CH,CO,C,H, B) CH,CO,CH, C) CH,CH,CHO CH, D) CH,CO,CH,CH, 22. Arranging the following inorder of increasing acid strength starting with the least acidic we have: A) CH,CH,CO,H, CH,CICO,H, CH CO.H, HCO,H B) HCO,H, CH,CO,H, CH,CICO,H, CH,CH,CO,H C) CH,CH,CO,H, HCO,H, CH.CO,H, CH,CiCO,H D) CH,CH,CO,H, C,H,CO,H, HOO,H, CH,CICO,H 354
Transcribed Image Text:Questions 10-49 DIRECTIONS: Each of the following questions or incomplete statements below is followed by four suggested answers lettered A D. Solect or choose the letters of the best answer to the question or incomptete statement. Que The real 10. Acid chtorides are obtained by treating Carboxylic acid with A) HCI C)SOCI, B) CI D) NaCI Suitabie yield can ckds is slow 227 A) conc B) dif. C) Na DI ca 10. Which one of the following aubstances is the main organic product when CICH COOH Is refluxed with aqueous NaOH?. A) CICH COONa B) HOCH COOH C) OHCH COONA D) NAOCH COOH Arrango the following compounds in order of their increasing strengths as acids putting the weakest first 1) CH CO H. 3) CH CICO H A) 1>2> 3 C) 3>1> 2 17 2) CH,CH,CO H B) 2 > 3>1 What D) 2<1<3 rever A) B) C) D) 11. Which one of the following substances Would be oxidised to 2- methyipropanoi (CH CO C H.) from ethanol and othanoic acid, a acid? A) CH CH CH(OH)CH, B) (CH) CHOH C) (CH.),CHCH,OH D) (CH) CHCHCH OH 12. Which one of the following carboxylic acids is the strongest? A) CHF CH COOH B) CH FCH COOH C) CH CHFCOOH D) CH,FCHFCOOH Questions 18 and 19 In the laboratory proparation of ethylethanate little concentrated sulphunc acid is added to the reaction mixture. Th 25 in 18 What is the purpose of the concentrated sulphuric acid A) to polarised the alcohol B) to inhibit the reaction C) to cause the reaction to go faster D) to acidify the medium is 19. What is the general name for this type of reaction? A) esterification B) ethanoylation C) acylation 13, When phenylmethanoate is hydrolysed by excess NaOH(aq), the products of the reaction D) saponification are 26 The systematic name of the compound with structural formula 20 A) phenoxide ion and methanol B) phenol and methanoate ion C) benzoate ion and methanol D) phonol and methanoic acid HOH %3D 14. is To which of the following classes of organic compounds does HOC H A) ethanedioic acid B) transbutanedioic acid C) transbutenedioic acid D) cis butanedioic acid CH-0-C belong? A) aldehydes C) esters B) carboxylic acid D) Ketones 21. Name the compound with tormula CH CICOCI A) 1, 2 -dichloro ethanone B) chloroethanyl chloride C) 1, 2- dichloro ethanal D) dichloro ethanoyl chloride 15. An ester was reflux with aqueous sodium hydroxide and then distilled. The distillate gave a yellow precipitate on warming wilth iodine in aqueous sodium hydroxide. The residue in the flask gave a white precipitate when dilute hydrochloric acid was added. A possible forumula for the orginal ester is A) CH,CO,C,H, B) CH,CO,CH, C) CH,CH,CHO CH, D) CH,CO,CH,CH, 22. Arranging the following inorder of increasing acid strength starting with the least acidic we have: A) CH,CH,CO,H, CH,CICO,H, CH CO.H, HCO,H B) HCO,H, CH,CO,H, CH,CICO,H, CH,CH,CO,H C) CH,CH,CO,H, HCO,H, CH.CO,H, CH,CiCO,H D) CH,CH,CO,H, C,H,CO,H, HOO,H, CH,CICO,H 354
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