WorksheetsLecture Week 15 Lesson 15 ( Carboxylic Acid Physical Properties)
Total questions: 13
Worksheet time: 7mins
What is the main reason carboxylic acid has the highest boiling point as compared to other compounds with comparable mass?
It has carboxyl functional group.
It is a strong acid.
It exists in a form of dimer.
It can form hydrogen bond
Boiling points of carboxylic acids is higher than those of corresponding alcohols.
Is the above statement True or False?
True
False
What is the characteristic functional group of carboxylic acids?
Carbonyl
Hydroxyl
Carbon
Carboxyl
Which is the correct order of boiling points of carboxylic acids, from the lowest to the highest?
methanoic acid, ethanoic acid, butanoic acid, propanoic acid
methanoic acid, propanic acid, butanoic acid, ethanoic acid
methanoic acid, ethanoic acid, propanoic acid, butanoic acid
ethanoic acid, methanoic acid, propanoic acid, butanoic acid
Which of these compounds is the most soluble in water?
1,2-propanediol
Ethanoic acid
Propanol
ethanedioc acid
Based on statement below, choose the RIGHT statements about carboxylic (the answer could be more than one)
Monocarboxylic acids are compound that containing two -COOH groups
Carboxylic acid has position isomer
Capric acid is straight carboxylic acid with eight carbon atom
Ethanoic acid has higher boiling point than ethanal
Carboxylic acid is a functional group isomer of eter
X: CH2ClCHClCOOH
Y: CH3CCl2COOH
Z: CH3CF2COOH
Select the correct order of acidity for the carboxylic acids above.
X< Y< Z
Z< Y< x
Y< Z< X
Y< X< Z
Boiling points of carboxylic acid is higher than those of corresponding alcohols due to
Strong London dispersion forces
Strong dipole-dipole interaction
Strong hydrogen bonded dimer
Strong covalent bond
What is the main reason carboxylic acid has the highest boiling point as compared to other compounds with comparable mass?
It has carboxyl functional group.
It is a strong acid.
It exists in a form of dimer.
It can form hydrogen bond
What factor can decrease the solubility of carboxylic acid in water?
The increase in length of the hydrocarbon chain.
The decrease in length of the hydrocarbon chain.
The increase in number of carboxyl group.
The number of hydrogen bond.
Which compound has the highest boiling point?
Butane
Dimethyl ether
Propan-1-ol
Acetic acid
Which of the following carboxylic acids is expected to have the highest boiling point?
CH3CH2COOH
CH3CH(OH)COOH
CH2(COOH)2
CH3CH(Cl)COOH
Choose the correct statement.
Ethanoic acid is completely soluble in water because it can dimerize in the presence of water.
Ethanoic acid is completely soluble in water because it has 2 carbon atoms.
Ethanoic acid is completely soluble in water because it can form hydrogen bond and van der Waals forces with water molecules.
Ethanoic acid is completely soluble in water because it has small hydrophobic group.
