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Worksheets

Aldehydes ketones and carboxylic acids

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

Name this molecule:

a)

Propanone

b)

Propanal

c)

Butanone

d)

Butanal

2.

What will be formed if butanone is reacted with LiAlH4 in dry ether?

a)

Butanoic acid

b)

Butan-1-ol

c)

Butan-2-ol

d)

Butanal

3.

What is the name of the mechanism when KCN (in acidic conditions) reacts with propanal?

a)

Free radical substitution

b)

Nucleophilic substitution

c)

Nucleophilic addition

d)

Electrophilic addition

4.

Name this molecule:

a)

Pentanoic acid

b)

2-hydroxy-2-methylbutan3-one

c)

3-hydroxy-3-methylbutane-2-one

d)

2-oxo-3-methylbutan-3-ol

5.
Propanone is very soluble in water because
a)
it is non-polar
b)
it can form hydrogen bond with water molecule
c)
water is a polar solvent
d)
the dipole-dipole interactions are weak between propane and water
6.
Predict the product of the following reaction
a)
A
b)
B
c)
C
d)
D
7.

Choose the best reagent in the missing box for carrying out the following reaction

a)

PCC, CH2Cl2

b)

CH3MgBr in ether, then H3O+

c)

m-ClC6H4CO3H

d)

warm H2SO4/H2O

e)

NaOCH3, CH3OH

8.
Aldehyde reacts with Tollen's reagent forming:
a)
Yellow precipitate
b)
Brick-red precipitate
c)
Purple solution
d)
Silver mirror
9.

2-butanol heated with acidified KMnO4 solution produced

a)

butanone

b)

butanoic acid

c)

butene

d)

butane

10.

what is the correct name for the following compound?

a)

2-methylbutan-3-one

b)

2-methylbutanone

c)

3-methylbutan-2-one

d)

3-methylpropan-2-one

11.

When reacted with a strong oxidising agent, aldehydes turn into

a)

carboxylic acids

b)

ketones

c)

primary alcohols

d)

secondary alcohols

12.

The correct order of acidic strength of carboxylic acids is

a)

Formic acid < benzoic acid < acetic acid

b)

Formic acid < acetic acid < benzoic acid

c)

Acetic acid < Formic acid < benzoic acid

d)

Acetic acid < benzoic acid < Formic acid

13.

The product formed in Aldol condensation is

a)

an alpha, beta - unsaturated ester

b)

a beta hydroxy acid

c)

a beta hydroxy aldehyde or ketone

d)

an alpha hydroxy aldehyde or ketone

14.

Which one is the formula of ethanal?

a)
b)
c)
d)