A21 T8 Carboxylic Acids

What is the functional group of carboxylic acids called?

• Hydroxyl group

• Carbonyl group

• Carboxyl group

• Alkyl group

How is the carboxyl group written in chemical notation?

• -COOH

• -OH

• -CHO

• -COO

What is the IUPAC rule regarding the carboxyl carbon in carboxylic acids?

• It is always carbon number 2

• It is always carbon number 1

• It is always carbon number 3

• It is always carbon number 4

Which of the following is a carboxylic acid?

• Methanoic acid

• Ethanol

• Propane

• Butene

What is the name of the carboxylic acid with the formula CH₃CH₂CH(CH₃)COOH?

• Methanoic acid

• Propanoic acid

• 2-methylbutanoic acid

• Ethanoic acid

What is the main intermolecular force affecting the boiling points of carboxylic acids?

• Ionic bonds

• Hydrogen bonds

• Van der Waals forces

• Covalent bonds

Why is the boiling point of carboxylic acids higher than that of alkanes?

• Due van der Waals' forces and hydrogen bonds

• Due to hydrogen bonds

• Due to ionic bonds

• Due to metallic bonds

What happens to the solubility of carboxylic acids as the number of carbon atoms in the chain increases?

• Solubility increases

• Solubility decreases

• Solubility remains the same

• Solubility fluctuates

What is produced when solid sodium carbonate reacts with a carboxylic acid?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

What is the product when ethanoic acid reacts with ammonia?

• Ammonium ethanoate + water

• Ammonium ethanoate

• Ammonium sulfate

• Ammonium nitrate