Alcohols and their reactions

Heat under reflux

Alcohols and their reactions

Dehydration of alcohols

HideShow resource information
  • Created by: Solz
  • Created on: 21-02-14 13:23
What is a Phenol
A hydroxyl group bonded to an arene
1 of 22
What is a secondary alcohol
One that has two carbon atoms bonded to the carbon that the hydroxyl group(OH) is attatched to
2 of 22
Tertiary alcohol
One that has 3 carbon atoms attatched to the carbon that the OH is bonded to
3 of 22
Primary
Has on carbon directly attatched to the carbon that is attatched to the OH group.
4 of 22
What are the possible products of oxidation of alcohols
ALDEHYDE, CARBOXYLIC ACID AND KETONE
5 of 22
What are the reagents and conditions(what is added and done) in the oxidation of a primary alcohol
Acidified dichromate is added and the product is collected by distillation. Under partial Oxidation/
6 of 22
What are product of the oxidaton of a primary alcohol
Aldehyde and carboxylic
7 of 22
what reagents and conditions are involved in the oxidation of a primary alcohol to produce a carboxylic acid(COOH)
Excess Acidified dichromate and heat under reflux
8 of 22
How are secondary alcohols oxidised(reagents&condition)
Excess Acidified Dichromate and heated under reflux
9 of 22
What is the product from the oxidation of a secondary alcohol
A ketone
10 of 22
What is the product of the oxidation of a Tertiary alcohol?
NONE ,CAN'T .
11 of 22
Why is it useful to heat under reflux
It allows reactions with volatile liquids to boil for longer periods of time to increase the rate and there by the yield
12 of 22
Name the 5 key parts of the reflux apparatus
Water in , Water out, the condenser, reaction mixture and the Anti-bumping granuels
13 of 22
What is the purpose of the condenser
It ensure any vapours are condensed to liquid and falls down into the vessel.
14 of 22
How should the condenser be fitted
Verticallly over the vessel
15 of 22
Benefits of the condenser
Avoids loss of reactants/products . Avoids risk of fire due to flammable vapour.Avoids risk of health problems due to toxic vapours
16 of 22
Define an Elimination Reaction
A reaction in which one or more atoms or group of atoms are lost from a molecule
17 of 22
Define dehydration
An elimination reaction in which water is removed from a saturated molecule(Alkane) to make an unsaturated molecule(Alkene).
18 of 22
What are the product of dehydration of an alcohol
An Alkene + Water
19 of 22
What molecules are lost in the dehydration of alcohols
H20 water from the alcohol is lost ( A OH AND H)
20 of 22
Describe the reagents and conditions of dehyration of alcohols in the LAB
Heat under reflux and concentrated supfuric acid
21 of 22
Describe the reagents and conditions of dehyration of alcohols in INDUSTRY
Alcohol is passed over ALUMINA(AL203) catalyst at 300 degrees HIgh temperature.
22 of 22

Other cards in this set

Card 2

Front

What is a secondary alcohol

Back

One that has two carbon atoms bonded to the carbon that the hydroxyl group(OH) is attatched to

Card 3

Front

Tertiary alcohol

Back

Preview of the front of card 3

Card 4

Front

Primary

Back

Preview of the front of card 4

Card 5

Front

What are the possible products of oxidation of alcohols

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Reactions resources »