Analysis Of Organic And Inorganic Compounds(CP7+15)

Question 1

Test for SO4^2-

Answer 1

Add acidified barium chloride solution
White precipitate forms

Question 2

Test for CO3^2-

Answer 2

Add aqueous acid
Bubbles of CO2 gas will be observed
Use a delivery tube to pass CO2 through limewater
Solution turns cloudy due to CaCO3 precipitate

Question 3

Test for bromide

Answer 3

Add chlorine water to a solution of bromide
Produces an orange colour if present
Some effervescence

Question 4

Test for alkenes and alkanes

Answer 4

Add bromine water to your compound and shake
If there are double C=C bonds(alkene) goes from orange to colourless
Alkanes stay orange