Experiment 4 - Properties of ethanol
Assessment
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Pan Wai Seng
•
Chemistry
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University
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57 plays
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Medium
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10 questions
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1.
Multiple Choice
Why is the pH of distilled water acidic?
test tube contain impurities
absorption of atmospheric carbon dioxide into the distilled water
Distilled water is naturally acidic
2.
Multiple Choice
Ethanol dissolves in water because it forms ______ bonds with water molecules.
dative
hydrogen
metallic
covalent
3.
Multiple Choice
Select the correct structure of triiodomethane.
4.
Multiple Choice
Gas bubbles produced when sodium is placed into ethanol because sodium displace ______ from ethanol.
oxygen
nitrogen
carbon
hydrogen
5.
Multiple Choice
Why is sodium metal kept in paraffin oil?
To reduce the contact of sodium metal with vapour in the air
To prevent the sodium metal from decomposing
To keep the sodium metal fresh
To maintain the glossiness of sodium metal
6.
Multiple Choice
Name the white precipitate shown in the picture.
Ethanoic acid
Ethyl ethanoate
Sodium ethoxide
Sodium chloride
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