Unit 7

Question 1

Name and draw the functional group that identifies an alcohol.

Answer 1

Hydroxyl -OH

Question 2

2. What is the suffix that all alcohol names end in?

Answer 2

-ol

Question 3

3. What is the general formula for alcohols

Answer 3

CnH2n+2O
Or, the shortened structural formula CnH2n+1OH

Question 4

Describe the trend in melting and boiling point of alcohols as the number of carbon atoms increases.

Answer 4

As the number of carbon atoms increases the melting and boiling point increases.

Question 5

5. What pH does an alcohol solution have?

Answer 5

7

Question 6

6. Are all alcohols soluble in water? What happens to the solubility as the carbon chain increases?

Answer 6

No. The smaller alcohols are soluble in water. The longer the carbon chain length the less soluble they become in water.

Question 7

7. State 4 uses of alcohols.

Answer 7

Fuel
Human consumption
Screen wipes
Disinfectant wipes
Hand gels

Question 8

8. Give 2 reasons why alcohols are used

Answer 8

Flammable
Burn with a clean flame

Question 9

Name and draw the functional group that identifies a carboxylic acid.

Answer 9

Carboxyl

-COOH

Question 10

What is the suffix that all carboxylic acids end in?

Answer 10

-anoic acid

Question 11

11. Describe the trend in melting and boiling point of carboxylic acids as the number of carbon atoms increases.

Answer 11

As the number of carbon atoms increases the melting and boiling point increases.

Question 12

12. Are carboxylic acids strong or weak acids?

Answer 12

Weak acids