Question 1

What is the structural formula of ethyl 3-methylbutanoate?

  A  

CH3CH2COOCH2CH2CH(CH3)2


  B  

CH3CH2COOCH(CH3)CH2CH3


  C  

CH3CH2CH(CH3)COOCH2CH3


  D  

(CH3)2CHCH2COOCH2CH3


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Question 2

Which of these reacts directly with ethanoic acid to form ethanoyl chloride?

  A  

chlorine

  B  

chloroethane

  C  

hydrogen chloride

  D  

thionyl chloride

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Question 3

Which compound is most soluble in water?

  A  

C4H9Cl


  B  

C4H9Br


  C  

C3H7COOH

  D  

CH3COOC2H5


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Question 4

The conversion of butanoic acid into butan-1-ol is an example of

  A  

elimination

  B  

substitution

  C  

oxidation

  D  

reduction

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Question 5

Butanone can be distinguished from butanoic acid by the addition of

  A  

Fehling’s solution and warming

  B  

Tollens’ reagent and warming

  C  

2,4-dinitrophenylhydrazine solution

  D  

acidified potassium dichromate(VI) solution and refluxing

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Question 6

The ester CH3CH2CH2CO2CH2CH(CH3)2 was hydrolysed under acidic conditions.

What are the organic products of this hydrolysis?

  A  

butanoic acid and 2-methylpropan-1-ol

  B  

butanoic acid and 2-methylpropan-2-ol


  C  

butan-1-ol and 2-methylpropanoic acid


  D  

propanoic acid and 2-methylpropan-1-ol

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Question 7

Which mixture could be used to produce propyl methanoate?

  A  

CH3CH2COOH and CH3OH

  B  

CH3CH2CH2CH2OH and HCOOH

  C  

CH3CH2CH2OH and HCOOH

  D  

CH3CH2CH2COOH and CH3OH

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Question 8

Which statement about carboxylic acids is correct?

  A  

they can be made by oxidising secondary alcohols

  B  

they react with phenols

  C  

they do not fizz with sodium carbonate solution

  D  

they form esters when reacted with tertiary alcohols

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Question 9

Which esterification reaction is correct?

  A  

(CH3CO)2O + C2H5OH ➔ CH3COOC2H5 + CH3COOH

  B  

(CH3CO)2O + 2CH3OH ➔ 2CH3COOCH3

  C  

CH3COOH + C6H5OH ➔ CH3COOC6H5 + H2O

  D  

CH3COCl + C2H5OH ➔ C2H5COOCH3 + HCl

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Question 10

Which compound is formed by acid hydrolysis of phenylmethyl ethanoate?

  A  

C6H5CH2OH


  B  

C6H5CHO

  C  

C6H5COCH3

  D  

C6H5COOH

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