Chemistry 7.2.3

Question 1

What happens during ‘Hydrogenation’?

Answer 1

Hydrogen Gas (H2) is added across an Alkene, which gets rid of the C=C Double Bond.

Question 2

What are the Conditions for Hydrogenation? (1)

Answer 2

Nickel Catalyst at 150’C.

Question 3

What type of Compound is produced from Hydrogenation of an Alkene?

Answer 3

Saturated Alkane.

Question 4

What happens during ‘Hydration’?

Answer 4

Water is added across an Alkene, which gets rid of the C=C Double Bond.

Question 5

What are the Conditions for Hydration? (3)

Answer 5

-Temp. ~330’C.
-Pressure 60-70atm.
-Concentrated Phosphoric Acid Catalyst.

Question 6

What is produced in the Hydration of Ethene?

Answer 6

Ethanol.

Question 7

What happens during ‘Halogenation’?

Answer 7

A Halogen Molecule is added across an Alkene, which gets rid of the C=C Double Bond.

Question 8

What are the Conditions for Halogenation? (1)

Answer 8

Nothing- occurs readily at room Temperature.

Question 9

What is Produced in the Halogenation of Ethene with Chlorine (Cl2)?

Answer 9

Dichloroethane.

Question 10

What Type of Compound is Produced from the Hydration of an Alkene?

Answer 10

Alcohol.

Question 11

What Type of Compound is Produced from the Halogenation of an Alkene?

Answer 11

Dihalogenated Compounds.