U3-3-3 - Alcohols

Question 1

When a primary alcohol is oxidised, the product is…

Answer 1

an aldehyde, and then a carboxylic acid.

Question 2

When a secondary alcohol is oxidised, the product is …

Answer 2

a ketone.

Question 3

How can alcohols be made from haloalkanes?

Answer 3

(Heated under reflux with) aqueous KOH or NaOH

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

Suggest a possible oxidising agent to oxidise an alcohol.

Answer 8

Copper(II) oxide OR acidified potassium dichromate

Question 9

LiAlH₄ acts as a …

Answer 9

reducing agent.

Question 10

What type of substance is this?

R–O^–

Answer 10

Alkoxide

(acts as a base)

Question 11

To make an alkoxide from an alcohol, react the alcohol with …

Answer 11

an alkali metal (Na/K).

Question 12

Name this type of compound.

Answer 12

Acid chloride

Question 13

Alcohols react with ______ or _____ to make esters.

Answer 13

carboxylic acids or acid chlorides

Question 14

What is an advantage of using acid chlorides over carboxylic acids in ester synthesis?

Answer 14

No catalyst required

Question 15

Alcohol + Carboxylic acid → Ester + Water

Name the catalyst used

Answer 15

Conc. sulfuric acid