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Chem > Carbxylic acids > Flashcards

Carbxylic acids Flashcards

1
Q

Oxidation to form carboxylic acids

A

Oxidise primary alcohols to form an aldehyde
CH3CH2OH+[O]—>CH3CHO+H2O
Aldehydes are then further oxidised to carboxylic acids
CH3CHO+[O]—>CH3COOH

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2
Q

Hydrolysis to form carboxylic acids

A

Nitriles are hydrolysed
Reflux with dilute HCl or H2SO4
The C(triple bond)N is converted into COOH
CH3CH2CN+HCl+2H2O—>CH3CH2COOH

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3
Q

Carboxylic acid and alkali

A

Salt and water

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4
Q

Carboxylic acid and reactive metal

A

Salt and hydrogen (gas)

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5
Q

Carboxylic acid and carbonate

A

Salt, water and CO2

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6
Q

Carboxylic acid and alcohol

A

Ester

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7
Q

Reduction of carboxylic acids

A

Reduced to primary alcohols using LiAlH4

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8
Q

Ester hydrolysis

A

Can be hydrolysed to carboxylic acid and an alcohol using dilute aqueous sulfuric acid
CH3CO2CH2CH3+H2O—> CH3CO2H+CH3CH2OH
Can also be hydrolysed to carboxylate salt and an alcohol using sodium hydroxide
CH3CO2CH2CH3+NaOH—>CH3CO2-Na++CH3CH2OH

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9
Q

Ester uses

A

Solvents
Perfumes
Flavourings

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Chem (15 decks)

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