WorksheetsEsters
Total questions: 24
Worksheet time: 15mins
Esters are formed through what type of reaction?
hydrolysis
condensation
hydration
dehydration
The products of the reaction of carboxylic acid and an primary alcohol in the presence of sulfuric acid are
salt and water
ester and water
acid and a base
smelly
Esters are known for......
the bright colours
flammability
exploding
fruity smell
What is this compound called?
propyl ethanoate
ethyl ethanoate
ethyl propanoate
methyl ethanoate
butan-1-ol + propanoic acid in the presence of sulfuric acid gives
butyl propanoate
propyl butanoate
heptanote
butane propanoic
Reaction of ester with dilute acid is called
dehydration
condensation
hydration
hydrolysis
Name this ester
pentyl ethanoate
hexyl ethanoate
ethyl pentanoate
ethyl ethanoate
Conditions for acid hydrolysis of an ester
H+/H2O, heat
H2O, heat
NaOH(aq), heat
conc H2SO4, heat
Conditions for alkaline hydrolysis of an ester
H+/H2O, heat
H2O, heat
NaOH(aq), heat
conc NH3, heat
Aspirin has this structure. What 2 functional groups are present?
alcohol and carboxylic acid
aldehyde and ketone
carboxylic acid and ester
ester and alcohol
Esters are virtually insoluble in water. What is the order of solubility in water of the following compounds?
1) ethyl methanoate
2) ethyl butanoate
3) ethyl ethanoate
1 > 2 > 3
1 > 3 > 2
3 > 1 > 2
2 > 3 > 1
The following molecule can be made from:
Propanol and methanoic acid
Methanol and propanoic acid
Methanol and ethanoic acid
Ethanol and ethanoic acid
EQ: What is the major product of the following reaction sequence?
Esters have distinctive sweet smells, and are volatile liquids. What does volatile mean?
flows easily
catches fire easily
evaporates easily
colours easily
What are some common uses of esters? (Select all that apply)
perfumes
flavourings
clothing
nappies
Name the ester that produced from the reaction between butanoic acid and methanol? (a)
