WorksheetsPhysical Properties of carboxylic acid
Total questions: 10
Worksheet time: 10mins
What is the characteristic functional group of carboxylic acids?
Carbonyl
Hydroxyl
Carbon
Carboxyl
Which compound has the highest boiling point?
Butane
Propanone
Acetic acid
1-propanol
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 carboxylic acids has the highest boiling point?
Valeric acid
Pentanedioic acid
Acetyl acid
Pentanoic acid
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 does miscible means?
Can form hydrogen bonds with water.
Mix with water in any proportion.
Soluble in water and organic solvents.
Dissolve in water to form hydrogen ions.
___________ is miscible in water.
Propanoic acid
Pentanoic acid
Benzoic acid
Hexanoic acid.
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 of these compounds is the most soluble in water?
1,2-propanediol
Ethanoic acid
Propanol
ethanedioc acid
Choose the correct statement.
Ethanoic acid is completely soluble in water because it can dimerise 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.
