WorksheetsCarboxylic acids
Total questions: 30
Worksheet time: 18mins
The products of the reaction of a carboxylic acid and an alcohol would be
Ketone and water
Amide and water
Acid chloride and water
Ester and water
Which is the correct IUPAC name of the following compound?
A. 2-hydroxybutanoic acid
B. 3-hydroxybutanoic acid
C. 2-hydroxypropanoic acid
D. 1-carboxypropan-2-ol
Give the name for the below structure based on IUPAC nomenclature.
A 2-methyl-4-butanoic acid
B 2-methyl-4-pentanoic acid
C 3-methylbutanoic acid
D 3-methylpentanoic acid
Which carboxylic acid is most acidic?
CH3CH2CH2COOH
CH3CH2CH(Cl)COOH
CH3CH(Cl)CH2COOH
ClCH2CH2CH2COOH
Reaction of a carboxylic acid and a primary amine will produce:
a substituted ammonium salt if heat is added
a secondary amine
a tertiary amine
an amide if heat is added
In the below sequence of reactions, A and B are which of the following?
(CH3)2C(OH)CN, (CH3)2C(OH)COOH
(CH3)2C(OH)CN, (CH3)2C(OH)2
(CH3)2C(OH)CN, (CH3)2CHCOOH
(CH3)2C(OH)CN, (CH3)2C=O
Which of the following compounds known as m-nitrobenzoic 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
Which alkyl benzene cannot be oxidised by KMnO4 to produce carboxylic acid?
Toluene
2-iodotoluene
benzene
ethylbenzene
Name this molecule:
Pentanoic acid
2-hydroxy-2-methylbutan3-one
3-hydroxy-3-methylbutane-2-one
2-oxo-3-methylbutan-3-ol
Which of the following reagents will oxidise propan-1-ol to propanal (tick all that apply)?
Acidified potassium dichromate (VI)
2,4-DNPH (Brady's reagent)
Fehling's solution
PCl5 (phosphorus pentachloride)
Choose the best reagent in the missing box for carrying out the following reaction
PCC, CH2Cl2
CH3MgBr in ether, then H3O+
m-ClC6H4CO3H
warm H2SO4/H2O
NaOCH3, CH3OH
What is the name of this ester?
Methyl Propanoate
Methyl Methanoate
Ethyl Ethanoate
Methyl Ethanoate
What is the correct IUPAC name for the Carboxylic Acid shown?
1,1,1-trimethylbutanoic acid
1,1,1-trimethylpentanoic acid
4,4-dimethylbutanoic acid
4,4-dimethylpentanoic acid
Ethanol reacts with ethanoic acid to form ethyl ethanoate.
C2H5OH + CH3COOH → CH3COOC2H5 + H2O
What is the formula of the ester formed when methanol reacts with butanoic acid, (C3H7COOH)?
C2H5COOC2H5
C3H7COOC2H5
C3H7COOCH3
CH3COOC3H7
The correct order of acidic strength of carboxylic acids is
Formic acid < benzoic acid < acetic acid
Formic acid < acetic acid < benzoic acid
Acetic acid < Formic acid < benzoic acid
Acetic acid < benzoic acid < Formic acid
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.
Carboxylic acids are acids because... (select all correct answers)
They will turn blue litmus paper red
They will accept protons from water, forming OH-
They will donate protons to water, forming H3O+
React with equation R-COOH + H2O --> R-COO- + H3O+
To prepare an acid chloride from a carboxylic acid, which are suitable reagents? (select all correct answers)
ZnCl2
PCl5
SOCl2
Cl2(aq)
Which of the following reactions with an acid chloride is a substitution reaction?
Acid chloride + water --> carboxylic acid + hydrochloric acid
Acid chloride + ammonia --> amide
Acid chloride + primary amine --> secondary amide + HCl
Acid Chloride + alcohol --> Ester + HCl
Which of the following reactions with an acid chloride is not a condensation reaction?
Acid chloride + water --> carboxylic acid + HCl
Acid chloride + ammonia --> 1o amide + HCl
Acid chloride + primary amine --> secondary amide + HCl
Acid Chloride + alcohol --> Ester + HCl
1-hexanol reacts with PCC/CH2Cl2 produced
hexene
hexanoic acid
hexanal
hexane
In the reaction, which answer represents the product X?
What are esters used for (chose two)
Perfumes
Fuels
Flavourings
Oxidising agent
Which reaction is not an electrophilic addition ?
A
B
C
D
A reaction between chlorine and propane in UV light produces 2 isomeric monochloropropanes, C3H7Cl, as products. Which information about this reaction is correct ?
A
B
C
D
The starting material A in this reaction sequence is called _____.
a β-keto ester
an α-carboethoxy ketone
a malonic ester
an acetoacetic ester
Compound X, diethyl propanedioate, is more commonly known as _____.
ethyl acetoacetate
acetoacetic ester
oxalic ester
malonic ester
