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Carboxylic acid

Total questions: 16

Worksheet time: 32mins

Name
Class
Date
1.

The products of the reaction of a carboxylic acid and an alcohol would be

a)

Ketone and water

b)

Amide and water

c)

Acid chloride and water

d)

Ester and water

2.

Boiling points of carboxylic acids is higher than those of corresponding alcohols is due to

a)

Strong London dispersion forces

b)

Strong dipole dipole interaction

c)

Strong hydrogen bonded dimer

d)

Strong covalent bond

3.

Which is the correct IUPAC name of the following compound?

a)

A. 2-hydroxybutanoic acid

b)

B. 3-hydroxybutanoic acid

c)

C. 2-hydroxypropanoic acid

d)

D. 1-carboxypropan-2-ol

4.
Which compound has the highest boiling point?
a)
Butane
b)
Dimethyl ether
c)
Propan-1-ol
d)
Acetic acid
5.
Carboxylic acids can be made from Grignards by treating the Grignard reagents with:
a)
CO
b)
diborane
c)
CO2
d)
Pyridine
6.

1-hexanol reacts with PCC/CH2Cl2 produced

a)

hexene

b)

hexanoic acid

c)

hexanal

d)

hexane

7.

Which of the following compounds known as m-nitrobenzoic acid?

a)
b)
c)
d)
8.

Which of the following carboxylic acids is expected to have the highest boiling point?

a)

CH3CH2COOH

b)

CH3CH(OH)COOH

c)

CH2(COOH)2

d)

CH3CH(Cl)COOH

9.
How do you produce a carboxylic acid?
a)
Reducing a secondary alcohol or ketone
b)
Reducing a primary alcohol or aldehyde
c)
Oxidizing a primary alcohol or an aldehyde
d)
Oxidizing a secondary alcohol or a ketone
10.

Which alkyl benzene cannot be oxidised by KMnO4 to produce carboxylic acid?

a)

Toluene

b)

2-iodotoluene

c)

benzene

d)

ethylbenzene

11.
Which reagent is commonly used to convert carboxylic acids into acid chlorides?
a)
HCl
b)
SOCl2
c)
CL2
d)
CH3Cl
12.

2-butanol heated with acidified KMnO4 solution produced

a)

butanone

b)

butene

c)

butanoic acid

d)

butane

13.
Which compound has the highest boiling point?
a)
Butane
b)
Dimethyl ether
c)
Propan-1-ol
d)
Acetic acid
14.

What is the main reason carboxylic acid has the highest boiling point as compared to other compounds with comparable mass?

a)

It has carboxyl functional group.

b)

It is a strong acid.

c)

It exists in a form of dimer.

d)

It can form hydrogen bond

15.

What factor can decrease the solubility of carboxylic acid in water?

a)

The increase in length of the hydrocarbon chain.

b)

The decrease in length of the hydrocarbon chain.

c)

The increase in number of carboxyl group.

d)

The number of hydrogen bond.

16.

Choose the correct statement.

a)

Ethanoic acid is completely soluble in water because it can dimerise in the presence of water.

b)

Ethanoic acid is completely soluble in water because it has 2 carbon atoms.

c)

Ethanoic acid is completely soluble in water because it can form hydrogen bond and van der Waals forces with water molecules.

d)

Ethanoic acid is completely soluble in water because it has small hydrophobic group.