Test
AQA GCSE Chemistry Unit 3.5
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Preguntas del test (20)
1Which type of formula shows what is attached to each carbon atom in symbols?
- AEmpirical formula
- BStructural formula
- CDisplayed formula
2Which type of formula shows organic molecules in diagrammatic form?
- AEmpirical formula
- BStructural formula
- CDisplayed formula
3What is the functional group of alcohols?
- AR-OH
- BR-COO-R
- CR-COOH
4What is the functional group of carboxylic acids?
- AR-OH
- BR-COO-R
- CR-COOH
5What is the functional group of esters?
- AR-OH
- BR-COO-R
- CR-COOH
6True or false? A homologous series is a set of organic compounds with the same functional group.
- AVerdadero
- BFalso
7What is the main alcohol in alcoholic drinks?
- AMethanol
- BEthanol
- CPropanol
- DButanol
8Which of these are uses of alcohols?
- ABeverages
- BSolvents in perfumes
- CVinegars
- DFlavourings and scents in perfumes
9True or false? Ethanol does not burn cleanly.
- AVerdadero
- BFalso
10True or false? The reaction of sodium with alcohols is more vigorous than with water.
- AVerdadero
- BFalso
11How can we oxidise alcohols into carboxylic acids?
- AReaction with potassium permanganate
- BBoiling with acidified potassium dichromate
- CFermentation with yeast
- DAction of microbes in the air
12Which of these are uses of carboxylic acids?
- ABeverages
- BVinegars
- CSolvents in perfumes
- DFlavourings and scents in perfumes
13Which of these are uses of esters?
- ABeverages
- BVinegars
- CSolvents in perfumes
- DFlavourings and scents in perfumes
14What two homologous series react to form esters?
- AAlkanes
- BAlkenes
- CAlcohols
- DAldehydes
- EKetones
- FCarboxylic acids
15True or false? Carboxylic acids do not dissociate completely with H+ ions in solution and are weak acids.
- AVerdadero
- BFalso
16Which acid is used as a catalyst when forming esters?
- AHydrochloric acid
- BAcetic acid
- CSulphuric acid
- DNitric acid
17Which of these are negative consequences of alcohol usage?
- ACirrhosis of the liver
- BSlowed reaction times
- CMuscular atrophy
- DIncreased violent behaviour
18Why is it difficult to distil ethanol from methylated spirits?
- AMethylated spirits contain only 0.01% ethanol
- BMethylated spirits contain many compounds with similar boiling points
- CMethylated spirits do not distil very well
19True or false? Ethanol cannot be used as a biofuel.
- AVerdadero
- BFalso
20True or false? Some people are opposed to biofuels as they argue that the land needed could be better used for food.
- AVerdadero
- BFalso
Información
- Descripción
- Twenty questions on the fifth section of Unit 3 in AQA GCSE Chemistry: Organic chemistry.
- Autor
- Matthew T
- Idioma
- English
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- 207
- Etiquetas
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