alcohols

Question 1

properties of alcohols

Answer 1

-high mp and bp
-soluble
-as chain increases, solubility decreases

Question 2

why does the solubility of an alcohol decreases when chain length increases

Answer 2

as there are more Carbons compared to OH and the OH is what makes it soluble

Question 3

what are the classifications of alcohols

Answer 3

-primary
-secondary
-tertiary

Question 4

what is a primary alcohol

Answer 4

• OH group is bonded to a carbon with one other alkyl groups attached
  e.g. butan-1-ol

Question 5

what is a secondary alcohol

Answer 5

• OH group is bonded to a carbon with two other alkyl groups attached
  e.g. propan-2-ol

Question 6

what is a tertiary alcohol

Answer 6

• Oh group is bonded to a carbon with three other alkyl groups attached
  e.g. 2-methyl-propan-2-ol

Question 7

what happens during the oxidation of primary alcohols (distillation)

Answer 7

alcohol + [O] –> aldehyde + H2O

Question 8

what happens during the oxidation of primary alcohols
(reflux)

Answer 8

alcohol + [O] –> carboxylic + H20

Question 9

what happens during the oxidation of secondary alcohols
(distillation)

Answer 9

alcohol + [O] –> ketone + H2O

Question 10

what happens during the oxidation of tertiary alcohols

Answer 10

tertiary alcohols cannot be oxidised

Question 11

what is the oxidation agent used

Answer 11

acidified dichromate ions
H+/C2O7^2-