Question 1

Which bond angles are present in a molecule of methanol?

  A  

90° and 104.5°

  B  

104.5° and 109.5°

  C  

109.5° and 180°

  D  

90° and 180°

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Question 2

Which alcohol gives only one possible oxidation product when warmed with dilute acidified potassium dichromate(VI)?

  A  

butan-1-ol

  B  

butan-2-ol

  C  

2-methylpropan-1-ol

  D  

2-methylpropan-2-ol

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Question 3

In the first commonly used breathalyser, acidified potassium dichromate(VI) was used which was reduced to chromium(III) by alcohol.

The colour change seen when alcohol was present in a motorist’s breath is from

  A  

orange to green

  B  

orange to yellow

  C  

yellow to green

  D  

yellow to orange

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Question 4

Ethanol is soluble in water. The best explanation for this is

  A  

ethanol molecules form hydrogen bonds with water molecules

  B  

ethanol molecules form London (dispersion) forces with water molecules

  C  

ethanol molecules form permanent dipole interactions with water molecules

  D  

ethanol and water are miscible liquids

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Question 5

When sodium is added to ethanol, which of the following observations would be made?

  A  

colour change of orange to green

  B  

effervescence

  C  

yellow flame

  D  

no change

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Question 6

What happens when the compound shown is distilled with acidified potassium dichromate(VI)?

  A  

no new product is formed

  B  

an aldehyde is formed

  C  

a ketone is formed

  D  

a carboxylic acid is formed

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Question 7

Which alcohol reacts with an acid catalyst to form E and Z stereoisomers?

  A  

pentan-3-ol

  B  

pentan-1-ol

  C  

2-methylbutan-2-ol

  D  

2,2-dimethylpropan-1-ol

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Question 8

Which alcohol will not react with potassium dichromate(VI) in sulfuric acid?

  A  

CH3CH2CH(OH)CH2CH3

  B  

CH3CH2CH(CH3)CH2OH

  C  

(CH3)2CHCH(CH3)OH

  D  

(CH3CH2)2C(CH3)OH

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Question 9

Which compound can be oxidised to form (CH3)2CHCOCH3?

  A  

2-methylpropan-1-ol 

  B  

2,2-dimethylpropanol

  C  

2-methylbutan-2-ol

  D  

3-methylbutan-2-ol

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Question 10

Which alcohol forms a mixture of alkenes when dehydrated?

  A  

propan-1-ol

  B  

propan-2-ol

  C  

pentan-1-ol

  D  

pentan-2-ol

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Question 11

Which compound reacts to form a ketone when warmed with an acidified solution of potassium dichromate(VI)?

  A  

CH3CH2CH2OH


  B  

(CH3)2CHOH

  C  

CH3CH2CHO

  D  

(CH3)2CHCOOH


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