Organic Chemistry 1

Question 1

Organic Analysis- Test For Functional Groups- Alkene

Answer 1

• Bromine water
• Orange to colourless

Question 2

Organic Analysis- Test For Functional Groups- Primary/Secondary Alcohol

Answer 2

• Warm with acidified potassium dichromate
• Orange to green

Question 3

Organic Analysis- Test For Functional Groups- Aldehyde / Ketone

Answer 3

• Warm with Fehling’s solution
• Blue solution to brick red precipitate
• Warm with Tollen’s reagent
• Silver mirror
• (ketones will show no effect)

Question 4

Organic Analysis- Test For Functional Groups- Halogenoalkane

Answer 4

• Warm with silver nitrate and nitric acid with the solution in ethanol
• Chloride ion=white precipitate
• Bromide ion=cream precipitate
• Iodide ion=yellow precipitate

Question 5

Organic Analysis- Test For Functional Groups- Carboxylic Acid

Answer 5

• Sodium hydrogen carbonate
• CO2 given off=turns limewater cloudy
• magnesium
• effervescence (hydrogen)=burns with a squeaky pop

Question 6

Organic Analysis- Test For Functional Groups- Ester

Answer 6

• (carbolic acid reacted to form ester)
• alcohol and strong acid catalyst
• sweet smell
• (alcohol reacted to form ester)
• carboxylic acid and strong acid catalyst
• sweet smell