PAPER ONE:MULTIPLE CHOICE QUESTIONSAcetylsalicyclic acid commonly calledaspirin is a drug widely used in Cameroon.Its structure is5.TYPE ONE QUESTIONSQuestions 1-49For questions 1-9 choose the letter A-D ofthe INCORRECT altemative.-OH1.Carboxylic acids can be prepared by theA)oxidation of its corresponding primary Aspirin can be said to contain the.alcohol using acidified potassiumdichromate.B) oxidation of a tertiary alcohol withA. Ester functional groupB. Acid functional groupC. Benzene ring functional groupD. Anhydride functional grouppotassium permanganate Vil acidiefiedC) hydrolysis of a nitrile on boiling withDuring the reaction of ethanol and ethanoicacidA.either dilute acid or alkali6.D) oxidation of aldehydres with acidifiedpotassium dichromatethe ethanol and ethanoic acıd are mixedin equimolarthe reaction takes placeroomIn the reactionCH COOH C H,OH CH,C0OC,H, + H,0A) the rate of the reaction is slow at roomtemperatureB) the equilibrium can be shifted in favourof the ester when water in removed2.temperatureC.the reaction is a condensationD. hydrogen ions are addedThe alkali hydrolysis of an C,H, O,can produce CH COOH + CH (CH ),OHВ.7.A.C) it is the OH group of the alcohol that isis called saponificationcan produceCH,CH,COONA + CH (CH,).CH,OHcan producelost as water.C.D) it is the OH group of the acid that is lostas water.D.CH,CH,CH COO- + CH,CH,CH,OH3.All the compounds below can be reducedby lithium aluminum hydride in etherThis question relates to the oxidation ofalcoholsA. All oxidation of alcohols end up in theformation of carbondioxide and water8.EXCEPT which?A. CH,OCH,.C. CH COOH D. CH,OHВ. СН CHOB. Carboxylic acids are products of mildoxidation of alcoholsWhich of the following statements orequation is NOT correct:A. Carboxylic acids react alcohols to formesters.4.C. The combustion of alcohois is a formof oxidationD. Ketones can be products of oxidationof alcoholsB. Esterication is an example ofcondensation reaction9.Ethanoic acid is aC. CH,COOH + CH,OHHCOOCH,CH, + H,0D. . CH,COOHCH,COOCH, + H,0A. Stronger acid than chloro ethanoic acidB. Weaker acid than methanoic acidC. Weaker acid than benzoic acidD. Stronger acid than propanoic acidCH,OH353

Oxidation reaction is one the major class of organic reactions. Is oxidation reaction, either loss…

Carboxylic acids can be prepared by the A) oxidation of its corresponding primary alcohol using acidified potassium 1. dichromate. B) oxidation of a tertiary alcohol with potassium permanganate Vil acidiefied C) hydrolysis of a nitrile on boiling with either dilute acid or alkali D) oxidation of aldehydres with acidified potassium dichromate

Carboxylic acids can be prepared by the A) oxidation of its corresponding primary alcohol using acidified potassium 1. dichromate. B) oxidation of a tertiary alcohol with potassium permanganate Vil acidiefied C) hydrolysis of a nitrile on boiling with either dilute acid or alkali D) oxidation of aldehydres with acidified potassium dichromate

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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1. Esters can be formed by the condensation of a carboxylic acid with the hydroxyl group of an alcohol or phenol. a) Use structures to show the condensation of acetic acid (IUPAC: ethanoic acid) with the hydroxyl of cyclohexanol. b) Explain why 'condensation' is an appropriate name for this reaction. c) You'll synthesize the ester in aspirin by condensing the phenol group of salicylic acid not with acetic acid, but with acetic anhydride. Explain why the experiment calls for the use of an anhydride, rather than an acid.
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