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Worksheets

Alcohols Aldehydes and Ketones

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

When reacted with a strong oxidising agent, aldehydes turn into

a)

carboxylic acids

b)

ketones

c)

primary alcohols

d)

secondary alcohols

2.
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
3.

Which of the following alcohols can be oxidized to a ketone?

a)
b)
c)
d)
4.

Name this molecule:

a)

Propanone

b)

Propanal

c)

Butanone

d)

Butanal

5.
Aldehyde reacts with Tollen's reagent forming:
a)
Yellow precipitate
b)
Brick-red precipitate
c)
Purple solution
d)
Silver mirror
6.

2-butanol heated with acidified KMnO4 solution produced

a)

butanone

b)

butanoic acid

c)

butene

d)

butane

7.

Identify the functional group present in this compound.

a)

aldehyde

b)

ketone

c)

carboxylic acid

d)

ester

8.

Identify the functional group present in this compound.

a)

aldehyde

b)

ketone

c)

alcohol

d)

ester

9.

Chemicals that contain a ketone functional group will end with....

a)

-al

b)

-ol

c)

-one

d)

-oic acid

10.

___________ commonly known as formaldehyde, was used as a biological preservative.

a)

Acetone

b)

Propanone

c)

Ethanol

d)

Methanal

11.
The name of this compound is:
a)
heptan-2-one
b)
2-hexanone
c)
2-heptanone
d)
pentan-2-one
12.

The strongest type of intermolecular force in alcohols is

a)

Van der Waals'

b)

Covalent Bonding

c)

Hydrogen Bonding

d)

Organic

13.

If ethanol is oxidised under reflux, the product will be

a)

Ethanoic Acid

b)

No Reaction

c)

Ethanone

d)

Ethanal

14.

What type of organic product is formed from the oxidation of a secondary alcohol?

a)

Carboxylic acid

b)

Aldehyde

c)

Ketone

d)

Alkene

15.

Tollens' reagent shows the following colour change in a ketone

a)

Colourless to silver mirror

b)

Blue to brick red

c)

Stays colourless

d)

Stays blue

16.

Which type of alcohol oxidises fastest?

a)

Primary

b)

Secondary

c)

Tertiary

d)

Diol

17.

Tollens' reagent shows the following colour change in an aldehyde

a)

Colourless to silver mirror

b)

Stays colourless

c)

Blue to brick red

d)

Stays blue

18.

Acidified potassium dichromate (VI) has the following colour change during oxidation

a)

Green to orange

b)

Blue to red

c)

Orange to green

d)

Colourless to silver

19.

Primary alcohols are oxidised to

a)

Ketones

b)

Carboxylic acids then aldehydes

c)

Aldehydes then carboxylic acids

d)

No reaction

20.

What charge do the orange potassium dichromate ions have?

a)

+3

b)

-6

c)

+6

d)

-3

21.

What charge do the green chromium ions, formed during the reduction of potassium dichromate(VI) ions, have?

a)

+3

b)

-6

c)

+6

d)

-3

22.

Identifying the functional group name the homologous series to which the molecule belongs.

a)

Aldehyde

b)

Alcohol

c)

Ketone

d)

Carboxylic Acid

23.

Identifying the functional group name the homologous series to which the molecule belongs.

a)

Alkanes

b)

Alcohols

c)

Aldehydes

d)

Ketones

24.

Identifying the functional group name the homologous series to which the molecule belongs.

a)

Alcohol

b)

Ketone

c)

Aldehyde

d)

Carboxylic Acid

25.

Identifying the functional group name the homologous series to which the molecule belongs.

a)

Carboxylic Acid

b)

Aldehyde

c)

Alcohol

d)

Ketone