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AQA GCSE Chemistry Unit 3.5

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Twenty questions on the fifth section of Unit 3 in AQA GCSE Chemistry: Organic chemistry.
Matthew T
Quiz by Matthew T, updated more than 1 year ago
Matthew T
Created by Matthew T almost 10 years ago
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Resource summary

Question 1

Question
Which type of formula shows what is attached to each carbon atom in symbols?
Answer
  • Empirical formula
  • Structural formula
  • Displayed formula

Question 2

Question
Which type of formula shows organic molecules in diagrammatic form?
Answer
  • Empirical formula
  • Structural formula
  • Displayed formula

Question 3

Question
What is the functional group of alcohols?
Answer
  • R-OH
  • R-COO-R
  • R-COOH

Question 4

Question
What is the functional group of carboxylic acids?
Answer
  • R-OH
  • R-COO-R
  • R-COOH

Question 5

Question
What is the functional group of esters?
Answer
  • R-OH
  • R-COO-R
  • R-COOH

Question 6

Question
True or false? A homologous series is a set of organic compounds with the same functional group.
Answer
  • True
  • False

Question 7

Question
What is the main alcohol in alcoholic drinks?
Answer
  • Methanol
  • Ethanol
  • Propanol
  • Butanol

Question 8

Question
Which of these are uses of alcohols?
Answer
  • Beverages
  • Solvents in perfumes
  • Vinegars
  • Flavourings and scents in perfumes

Question 9

Question
True or false? Ethanol does not burn cleanly.
Answer
  • True
  • False

Question 10

Question
True or false? The reaction of sodium with alcohols is more vigorous than with water.
Answer
  • True
  • False

Question 11

Question
How can we oxidise alcohols into carboxylic acids?
Answer
  • Reaction with potassium permanganate
  • Boiling with acidified potassium dichromate
  • Fermentation with yeast
  • Action of microbes in the air

Question 12

Question
Which of these are uses of carboxylic acids?
Answer
  • Beverages
  • Vinegars
  • Solvents in perfumes
  • Flavourings and scents in perfumes

Question 13

Question
Which of these are uses of esters?
Answer
  • Beverages
  • Vinegars
  • Solvents in perfumes
  • Flavourings and scents in perfumes

Question 14

Question
What two homologous series react to form esters?
Answer
  • Alkanes
  • Alkenes
  • Alcohols
  • Aldehydes
  • Ketones
  • Carboxylic acids

Question 15

Question
True or false? Carboxylic acids do not dissociate completely with H+ ions in solution and are weak acids.
Answer
  • True
  • False

Question 16

Question
Which acid is used as a catalyst when forming esters?
Answer
  • Hydrochloric acid
  • Acetic acid
  • Sulphuric acid
  • Nitric acid

Question 17

Question
Which of these are negative consequences of alcohol usage?
Answer
  • Cirrhosis of the liver
  • Slowed reaction times
  • Muscular atrophy
  • Increased violent behaviour

Question 18

Question
Why is it difficult to distil ethanol from methylated spirits?
Answer
  • Methylated spirits contain only 0.01% ethanol
  • Methylated spirits contain many compounds with similar boiling points
  • Methylated spirits do not distil very well

Question 19

Question
True or false? Ethanol cannot be used as a biofuel.
Answer
  • True
  • False

Question 20

Question
True or false? Some people are opposed to biofuels as they argue that the land needed could be better used for food.
Answer
  • True
  • False
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