Alcohols and haloalkanes

Question 1

What are haloalkanes used for in daily life

Answer 1

Haloalkanes are used to make solvents, polymers ,refrigerants and pesticides

Question 2

Draw the word equation of bromoethane

Answer 2

C2H5OH + NaBr + H2SO4 —> C2H5Br + H2O + NaHSO4

ethanol + sodium bromide + sulfuric acid —> Bromoethane + water + sodium hydrogen sulfate

Question 3

What happens during the formation of bromoethane

Answer 3

Ethanol is heated under a reflux with a mixture of sodium bromide and sulfuric acid

The sulfuric acid has a concentration of around 50%. In the first stage, the sodium bromide and sulfuric acid react together to form hydrogen bromide and sodium hydrogen sulfate

In the second stage the hydrogen bromide reacts with the ethanol to form bromoethane and water.

Bromoethane , water and sodium hydrogen sulfate is formed as products. This is through the substitution of the alcohol with the bromide atom. (Substitution reaction)

The product haloalkanes is then separated

Question 4

Draw the word equation of the first reaction to form Bromoethane

Question 5

Draw the word equation of the second reaction to form Bromoethane

Question 6

Why are haloalkanes distilled

Answer 6

Due to the volatile properties of haloalkanes