mechanisms2

Question 1

( nucleophilic substitution) bromoethane reacts with hydroxide to form… : ( draw mechanism)

Answer 1

ethanol
https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_PwogFJjU

Question 2

(addition reaction - of halogens -) bromine and ethene react : (draw mechanism)

Answer 2

https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_IyjhkRsI

Question 3

(addition reaction - of hydrogen halides -) HBr and ethene react : (draw mechanism)

Answer 3

https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_IyjhkRsI

Question 4

(addition reaction - of concentrated sulphuric acid -) ethene reacts with sulphuric acid to form… : (draw mechanism)
- How is the alkyl hydrogen sulphate produced turned into alcohols and sulphuric acid?

Answer 4

ethyl hydrogen sulfate

https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_IyjhkRsI

• Water and heat hydrolyse the alkyl hydrogen sulfate to alcohols and sulfuric acid showing that sulfuric acid is a catalyst in the hydration of alkenes.

Question 5

(addition reaction - aka hydration reaction -) Under the influence of a phosphoric(V )- 5 acid catalyst, alkenes react with steam at 300°C and 60-70 atm pressure, undergoing hydration to form alcohols.
water and ethene react : (draw mechanism)

Answer 5

https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_IyjhkRsI

Question 6

( dehydration a type of ) elimination reaction facilitated by a heated acid catalyst such as concentrated H2SO4.
Draw the mechanism for dehydrating ethanol in the presence of a concentrated sulfuric acid catalyst

Answer 6

ethene
https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_VWkVXPcE

Question 7

oxidation of primary alcohol just use r for the alkyl group( including further oxidation):

Answer 7

https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_VWkVXPcE

Question 8

oxidation of secondary alcohol just use r for the alkyl group :

Answer 8

https://cognitoedu.org/coursesubtopic/c3-alevel-aqa_VWkVXPcE