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WorksheetsAlcohol, carboxylic acid and esters
Total questions: 20
Worksheet time: 12mins
Main functional group present in alcohol is _______.
-COOH
C-C
-OH
C=C
General formula for alcohol is ________.
CnH2n+1O
CnH2n+1OH
CnH2nOH
CnH2n+1COOH
What are the products of complete combustion of ethanol?
CO2 and H2O
CO2 and H2
C and H2O
CO2 and O2
All the members of alcohol homologous series have similar chemical properties.
True
False
Ethanol is formed by :
1. Fermentation ;
2. reaction between steam and ethene.
Which of these processes uses a catalyst?
Both 1 and 2
Only 1
Only 2
none of the above
Ethanol is made by fermentation. How is ethanol obtained from the fermentation mixture?
chromatography
crystallization
electrolysis
fractional distillation
Vinegar tastes sour because of
Ethanoic acid
Ethanol
Butanoic acid
Ethyl ethanoate
Name this compound
propanol
propanoic acid
butanoic acid
butanol
Esters are known for......
the bright colours
flammability
exploding
fruity smell
When detecting the odour of a chemical you should...
put your nose over the chemical and take a deep breath
use your hand to fan the odour towards your nose.
What catalyst is used in making esters?
sodium hydroxide
iron
sulfuric acid
lithium oxide
What is this compound called?
propyl ethanoate
ethyl ethanoate
ethyl propanoate
methyl ethanoate
Ester links are also known as
carboxylates
carboxyl
Hydroxyl
carbonyl
Name a reaction that converted Compound X to Compound Y
(a)
Name the reagent used to convert Compound X to Compound Y.
(a)
Name this functional group
hydroxide
hydroxyl
carboxyl
ester link
Diagram shows the conversion of molecule A through two different processes. Which of the following is molecule A and process II
Molecule A : Ethanol Process II : Esterification
Molecule A : Ethanol Process II : Oxidation
Molecule A : Ethene Process II : Dehydration
Molecule A : Ethanoic acid Process II : Esterification
Diagram shows oxidation process of ethanol.
What can be observed after being heated for 5 minutes?
No colour change
All of the ethanol vapourises and the flask becomes dry
The colour of mixture changes from orange to green
The mixture in the flask separated into two layers. The upper layer is yellow while the lower layer is green
