3.3.3 Halogenoalkanes

Question 1

What are the reagents and conditions for an elimination reaction with OH- ions?

Answer 1

Reagents: Potassium / Sodium Hydroxide
Conditions: in ethanol; Heat

Question 2

In an elimination reaction, OH- acts as a..

Answer 2

In an elimination reaction, OH- acts as a base

Question 3

Draw an elimination mechanism for 2-bromo-propane

Answer 3

ON GOOGLE DOCS

Question 4

What’s important to note about the products formed in an elimination reaction?

Answer 4

Different structural isomers can be formed
Depending on the H that is removed

Question 5

Draw the mechanism for the nucleophilic substitution of bromo-ethane with hydroxide ions

Answer 5

GOOGLE DOCS

Question 6

Draw the mechanism for the nucleophilic substitution of bromo-ethane with cyanide ions

Answer 6

GOOGLE DOCS

Question 7

Draw the mechanism for the nucleophilic substitution of bromoethane with ammonia

Answer 7

GOOGLE DOCS

Question 8

For each type of nucleophilic substitution, state the change in functional group

Answer 8

Hydroxide ions: Halogenoalkanes to Alcohol
Cyanide Ions: Halogenoalkane to Nitrile
Ammonia: Halogenoalkane to Amine

Question 9

What are the products in an elimination reaction?

Answer 9

alkene + water + nucleophile

Question 10

What is the overall equation for ozone depletion?

Answer 10

2O3 -> 3O2

Question 11

What are fuels? [1]

Answer 11

Substances that release heat energy when they undergo combustion

Question 12

State the reagents and conditions for catalytic hydrogenation. (for alkene -> alkane)

Answer 12

Hydrogen
Ni catalyst
High pressure