Organic Compounds

Question 1

What is the formula for an alcohol?

Answer 1

CnH2n+OH

Question 2

Alcohol functional group

Answer 2

OH

Question 3

Properties of an alcohol

Answer 3

Flammable (produce carbon dioxide and water)
Soluble in water
Neutral pH
Can be oxidised (by reacting with oxygen)

Question 4

Uses of alcohols

Answer 4

Used as solvents in industry (can dissolve substances water can’t, like hydrocarbons)
Used as fuels

Question 5

Ethanol creation

Answer 5

Fermentation of yeast (produces carbon dioxide)
Fastest at 37’, slightly acidic and anaerobic conditions

Question 6

Carboxylic acids functional group

Answer 6

COOH

Question 7

Carboxylic acids reactions to produce salt

Answer 7

Carbonates to produce a salt, water and carbon dioxide
Salts will form an -anoate (e.g. methanoate)

Question 8

Carboxylic acid in water

Answer 8

Dissolves to release H+ ions
Don’t ionise completely so form weak acid solutions

Question 9

Esters functional group

Answer 9

COO

Question 10

What are esters formed from?

Answer 10

Alcohols and a carboxylic acid

Question 11

Requirements to make an ester

Answer 11

An acid catalyst