alcohols (3.3.5)

Question 1

how are alcohols classified?

Answer 1

as primary, secondary or tertiary

Question 2

what is the key feature of primary alcohols?

Answer 2

they have 2 or 3 H atoms bonded to the C atom with the OH group attached

Question 3

what is the key feature of secondary alcohols?

Answer 3

they have 1 H atom bonded to the C atom with the OH group attached

Question 4

what is the key feature of tertiary alcohols?

Answer 4

they have 0 H atoms bonded to the C atom with the OH group attached

Question 5

what are the rules to remember when naming alcohols?

Answer 5

1. the OH group takes priority
2. if there are two or more OH groups, you add an e to the name for the number of C atoms eg. butane-2,3-diol

Question 6

how can an alkene be formed from an alcohol?

Answer 6

by an acid-catalysed elimination reaction

Question 7

what can alkenes produced during the elimination of alcohols be used for?

Answer 7

producing addition polymers without using monomers derived from crude oil

Question 8

what happens to the alcohol during elimination?

Answer 8

• it reacts with the H^+ from the acid catalyst
• the OH is removed from the carbon atom along with a hydrogen atom from the adjacent carbon (produced a water molecule)
• a double bond forms between the two carbon atoms