17C: Carboxylic acids

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

Identify the functional group.

Back (Answer)

Carboxylic acid

Front (Question)

Explain the boiling temperatures of carboxylic acids.

Back (Answer)

Relatively high boiling point, because molecules can form dimers with 2 H-bonds between each molecule.

Front (Question)

Explain the solubility of carboxylic acids.

Back (Answer)

Relatively high solubility, because molecules can form H-bonds with water.

Front (Question)

State 2 methods of preparing carboxylic acids.

Back (Answer)

Oxidation of primary alcohols or aldehydes. Hydrolysis of nitriles.

Front (Question)

Describe how to prepare carboxylic acids from primary alcohols or aldehydes

Back (Answer)

Acidified potassium dichromate.

Front (Question)

Describe how to prepare carboxylic acids from nitriles.

Back (Answer)

Acid hydrolysis: H2O, dilute HCl Alkali hydrolysis: H2O, dilute NaOH + HCl to liberate parent acid of salt produced

Front (Question)

Reaction of carboxylic acids with lithium tetrahydridoaluminate: Type of reaction, Condition, Product.

Back (Answer)

Reduction, In dry ether, Primary alcohol

Front (Question)

Describe the reaction: Carboxylic acid -> Primary alcohol

Back (Answer)

React with LiAlH4 in dry ether.

Front (Question)

Reaction of carboxylic acids with metal oxides/hydroxides: Products.

Back (Answer)

Carboxylate salt, water

#10

Front (Question)

Reaction of carboxylic acids with metal carbonates: Products, Observation.

Back (Answer)

Carboxylate salt, water, carbon dioxide, Effervesence - turns limewater cloudy

#11

Front (Question)

Describe the reactions: Carboxylic acid -> Carboxylate salt

Back (Answer)

React with base, e.g. Metal oxide, Metal hydroxide, Metal Carbonate.

#12

Front (Question)

Test for carboxyl group.

Back (Answer)

React with Metal Carbonate, CO2 gas produced.

#13

Front (Question)

Reaction of carboxylic acids with phosphorus(V) chloride: Prodcuts, Observation.

Back (Answer)

Acyl chloride, POCl3, HCl, Steamy white fumes - turns damp blue litmus red

#14

Front (Question)

Describe the reaction: Carboxylic acid -> Acyl chloride

Back (Answer)

React with PCl5, Produces POCl3 and HCl, Steamy white fumes

#15

Front (Question)

Reaction of carboxlic acids with alcohols: Condition, Product.

Back (Answer)

Concentrated H2SO4 catalyst, Ester

#16

Front (Question)

Describe the reaction: Carboxylic acid -> Ester

Back (Answer)

React with alcohol in conc H2SO4, Equilibrium reaction.

#17

Front (Question)

Identify the functional group.

Back (Answer)

Acyl chloride

#18

Front (Question)

Identify the functional group.

Back (Answer)

Ester

#19

Front (Question)

Reaction of acyl chlorides with water: Products, Observation

Back (Answer)

Carboxylic acid, HCl, Steamy white fumes - turns damp blue litmus red

#20

Front (Question)

Describe the reaction: Acyl chloride -> Carboxylic acid

Back (Answer)

React with water, Produces HCl, Steamy white fumes

#21

Front (Question)

Reaction of acyl chlorides with alcohols: Products, Observation.

Back (Answer)

Ester, HCl, Steamy white fumes - turns damp blue litmus red

#22

Front (Question)

Describe the reaction: Acyl chloride -> Ester

Back (Answer)

React with alcohol, Produces HCl, Steamy white fumes

#23

Front (Question)

Reaction of acyl chlorides with ammonia: Condition, Products

Back (Answer)

Concentrated NH3, Primary amide + ammonium chloride

#24

Front (Question)

Describe the reaction: Acyl chloride -> Primary amide

Back (Answer)

React with concentrated ammonia, Produces ammonium chloride