7565367
Description
Quiz by Matthew Reid, updated more than 1 year ago
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Created by Matthew Reid
almost 8 years ago
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Question 1
Question
What function group do the natural chemicals, esters, have?
Answer
-
-COOH-
-
-COO-
-
-COH-
Question 2
Question
What forms to give an ester?
They are formed from an [blank_start]alcohol[blank_end] and [blank_start]carboxylic acid[blank_end]. This is called an [blank_start]esterification[blank_end] reaction.
Answer
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alcohol
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sodium
-
water
-
weak acid
-
vegetable oil
-
carboxylic acid
-
vegetable oil
-
unsaturated fatty acids
-
esterfication
-
ethyl ethanoation
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ester distillation
-
esterification
Question 3
Question
Esters aren't very volatile.
Answer
- True
- False
Question 4
Question
Esters are used to make [blank_start]flavourings[blank_end] and [blank_start]aromas[blank_end]
Answer
-
flavourings
-
aromas
Question 5
Question
• Some esters are used as [blank_start]solvents[blank_end] for paint, ink, glue, etc.
• They are also used as [blank_start]plasticisers[blank_end] - they're added to [blank_start]plastics[blank_end] to make them more flexible.
Answer
-
plasticisers
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catalysts
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nanoparticles
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clothes
-
rubbers
-
plastics
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PVCs
-
distillants
-
solvents
-
reactants
Question 6
Question
Fats and oils are esters of glycerol and fatty acids?
Answer
- True
- False
Question 7
Question
Animal fats have mainly [blank_start]saturated[blank_end] hydrocarbon chains. They contain very [blank_start]few[blank_end] C=C. They are normally [blank_start]solid[blank_end] at room temperature.
Answer
-
saturated
-
few
-
solid
Question 8
Question
Vegetable oils have mainly [blank_start]unsaturated[blank_end] hydrocarbon chains. They contain [blank_start]a lot[blank_end] of C=C. They are normally [blank_start]liquid[blank_end] at room temperature.
Answer
-
unsaturated
-
a lot
-
liquid
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