Alkenes

Question 1

Addition of bromine to ethene (mechanism)

Question 2

Addition of hydrogen bromide to propene (mechanism)

Question 3

addition of hydrogen to ethene, condition and product

Answer 3

heated nickel catalyst, product: ethane

Question 5

Electrophilic addition of bromine (or chlorine) to ethene, condition and product

Answer 5

room temperature with halogen dissolved in hexane , product: 1,2-dibromoethane

Question 5

Electrophilic addition of aqueous bromine to ethene condition and product ( where HOBr is the electrophile)

Answer 5

organic product: 2-bromoethanol

Question 6

general formula

Answer 6

CnH_2n (with a C=C)

Question 6

electrophilic addition of hydrogen halides (e.g HI) to ethene condition and product

Answer 6

mix gases at room temperature product: 1-iodopropane

Question 8

Oxidation of ethene by potassium manganate (VII) condition, observation and product

Answer 8

room temperature, mixed with sodium hydroxide observation: brown precipitate product: ethan-1,2-diol

Question 9

polymerisation of ethene condition and product

Answer 9

high pressure ( 1000 atm) and 250 degrees OR catalyst at 50 degrees and 10atm pressure