Alcohols, carboxylic acids and esters Flashcards
1
Q
A functional group of alcohol
A
O–H / OH. It replaces hydrogen atom at the end.
2
Q
Homologous series
A
A family of compounds with the same functional group.
3
Q
Methanol has…
A
one carbon atom. CH3 OH
4
Q
Ethanol has…
A
two carbon atoms. CH3 CH2 OH
5
Q
Propanol has…
A
three carbon atoms. CH3 CH2 CH2 OH
6
Q
Properties of M, E and P:
A
- dissolve in water to form a neutral solution
- react with sodium to produce hydrogen
- burn in air
7
Q
These 3 alcohols are used as
A
- fuels
- solvents
- ethanol is main alcohol in alcoholic drinks
8
Q
Ethanol can be…
A
oxidised to ethanoic acid (carboxylic acid)
9
Q
What is used to oxidise ethanol?
A
- chemical oxidising agent
- bacteria
10
Q
Ethanoic acid is made using…
A
bacteria and it is the main acid in vinegar.
11
Q
A carboxylic acid functional formula
A
UP (C double bond 0) and DOWN (C single bond 0 and H). COOH
12
Q
Methanoic acid formula
A
HCOOH
13
Q
Ethanoic acid formula
A
CH3 COOH
14
Q
Propanoic acid formula
A
CH3 CH2 COOH
15
Q
Properties of carboxylic acids:
A
- dissolve water to produce a weakly acidic solution
- 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 dissolved in water
