Polymers Of Life

Question 1

What type to reaction is the formation of ethene from the dehydration of ethanol?

Answer 1

• elimination reaction as water is removed (eliminated)

Question 2

Definition of a 2• alcohol

Answer 2

• an alcohol where the OH- group bonded to a C which is bonded to 2 other carbons

Question 3

What can be oxidised to form a carboxylic acid?

Answer 3

• aldehydes

Question 4

Why is there a peak @ 1+ the molecular ion?

Answer 4

• due to the presence of the C13 isotope

Question 5

In oxidation what turns from orange to green?

Answer 5

• as the dichromate (VI) ion is oxidised it turns from orange to green

Question 6

How can TLC determine the completion/incompletion of a reaction.

Answer 6

• completion= no. of dots will correspond to the no. of products
• incompletion= no. of dots will correspond to the no. of reactants and products

Question 7

Distillation of an alcohol with acidified dichromate produces what?

Answer 7

• an aldehyde

Question 8

What is the test for a phenol?

Answer 8

• compound will turn purple in the presence of Iron (III) Chloride

Question 9

Phenol + ???? —> ester + ?????

Answer 9

Phenol + Acid Anhydride —> Ester + Carboxylic Acid