Halogenoalkanes

Question 1

Draw out the mechanism of bromoethane reacting with sodium hydroxide in warm, aqueous conditions
What is this mechanism?

Answer 1

Well done
Nucleohphilic substitution

Question 2

What is a nucleophile?

Answer 2

A lone pair donor

Question 3

What are three examples of nucleophiles?

Answer 3

OH-
CN-
NH3

Question 4

Draw out the mechanism of 2-bromopropane reacting with ammonia in warm, aqueous conditions
What is this mechanism?

Answer 4

Well done
Nucleophilic substitution

Question 5

Draw out the mechanism of 1-chloropropane reacting with sodium hydroxide in hot, alcoholic conditions
What is this mechanism?

Answer 5

Well done
Elimination reaction

Question 6

Write out the order of halogenoalkanes from the slowest to fastest rate of reaction

Answer 6

Fluoroalkanes
Chloroalkanes
Bromoalkanes
Iodoalkanes

Question 7

Why do iodoalkanes react the fastest?

Answer 7

Because they have the lowest bond enthalpy due to weaker bonds as its a larger halogen