876540
Frage 1
Frage
Which type of formula shows what is attached to each carbon atom in symbols?
Antworten
-
Empirical formula
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Structural formula
-
Displayed formula
Frage 2
Frage
Which type of formula shows organic molecules in diagrammatic form?
Antworten
-
Empirical formula
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Structural formula
-
Displayed formula
Frage 3
Frage
What is the functional group of alcohols?
Antworten
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R-OH
-
R-COO-R
-
R-COOH
Frage 4
Frage
What is the functional group of carboxylic acids?
Antworten
-
R-OH
-
R-COO-R
-
R-COOH
Frage 5
Frage
What is the functional group of esters?
Antworten
-
R-OH
-
R-COO-R
-
R-COOH
Frage 6
Frage
True or false? A homologous series is a set of organic compounds with the same functional group.
Antworten
- True
- False
Frage 7
Frage
What is the main alcohol in alcoholic drinks?
Antworten
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Methanol
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Ethanol
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Propanol
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Butanol
Frage 8
Frage
Which of these are uses of alcohols?
Antworten
-
Beverages
-
Solvents in perfumes
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Vinegars
-
Flavourings and scents in perfumes
Frage 9
Frage
True or false? Ethanol does not burn cleanly.
Antworten
- True
- False
Frage 10
Frage
True or false? The reaction of sodium with alcohols is more vigorous than with water.
Antworten
- True
- False
Frage 11
Frage
How can we oxidise alcohols into carboxylic acids?
Antworten
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Reaction with potassium permanganate
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Boiling with acidified potassium dichromate
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Fermentation with yeast
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Action of microbes in the air
Frage 12
Frage
Which of these are uses of carboxylic acids?
Antworten
-
Beverages
-
Vinegars
-
Solvents in perfumes
-
Flavourings and scents in perfumes
Frage 13
Frage
Which of these are uses of esters?
Antworten
-
Beverages
-
Vinegars
-
Solvents in perfumes
-
Flavourings and scents in perfumes
Frage 14
Frage
What two homologous series react to form esters?
Antworten
-
Alkanes
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Alkenes
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Alcohols
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Aldehydes
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Ketones
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Carboxylic acids
Frage 15
Frage
True or false? Carboxylic acids do not dissociate completely with H+ ions in solution and are weak acids.
Antworten
- True
- False
Frage 16
Frage
Which acid is used as a catalyst when forming esters?
Antworten
-
Hydrochloric acid
-
Acetic acid
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Sulphuric acid
-
Nitric acid
Frage 17
Frage
Which of these are negative consequences of alcohol usage?
Antworten
-
Cirrhosis of the liver
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Slowed reaction times
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Muscular atrophy
-
Increased violent behaviour
Frage 18
Frage
Why is it difficult to distil ethanol from methylated spirits?
Antworten
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Methylated spirits contain only 0.01% ethanol
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Methylated spirits contain many compounds with similar boiling points
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Methylated spirits do not distil very well
Frage 19
Frage
True or false? Ethanol cannot be used as a biofuel.
Antworten
- True
- False
Frage 20
Frage
True or false? Some people are opposed to biofuels as they argue that the land needed could be better used for food.
Antworten
- True
- False
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