10. Alcohols, carboxylic acids & esters

Question 1

What functional group do alcohols contain?

Answer 1

-OH

Question 2

What are the first three members of the homologous series of alcohols ?

Answer 2

Methanol, Ethanol, and propanol

Question 3

What is the formula of Ethanol?

Answer 3

CH3 CH2 OH

Question 4

Properties of alcohols:

Answer 4

Dissolves in water to form a neutral solution
React with sodium to produce Hydrogen
Burn in air
Used as fuels and solvents, and ethanol is the main alcohol in alcoholic beverages

Question 5

What is the result of oxidising Ethanol (Via an oxidising agent or by microbial action)?

Answer 5

Ethanoic acid

Question 6

What is Ethanoic acid?

Answer 6

The main ingredient in vinegar

Question 7

What homologous series is Ehtanoic acid a part of?

Answer 7

Carboxylic acids

Question 8

What is the functional group in Carboxylic Acids?

Answer 8

-COOH

Question 9

Carboxylic acids:

Answer 9

Dissolve in water to produce acidic solutions
React with Carbonates to produce Carbon Dioxide
React with Alcohols in the presence of an acid catalyst to produce esters
Do not ionise completely when dissolve in water and so are weak acids

Question 10

What is produced with Ethanol and Ethnic acid react?

Answer 10

Ethyl Ethanoate the ester is produced

Question 11

What is the functional group of esters?

Answer 11

-COO-

Question 12

What are Esters?

Answer 12

Volatile compounds with distinctive smells and so are used as flavourings and perfumes