Testing for Elements

Test for H- lighted splint goes out with a squeaky pop

Test for O- glowing splint lights

Test for CO2- limewater goes cloudy

Test for Cl- bleaches damp red and blue litmus paper

Test for NH3

-Smells of stale urine

-Made by heating an Ammonium coumpound with Sodium Hydroxide

-The only alkali gas

-IT TURNS RED LITMUS PAPER BLUE

Not many Cations give colours in a flame therefore we have to use a different test

Adding Sodium Hydroxide solution

we can identify 4 with this test

Iron(II) Sulphate-Dark Green Participate

Iron(III) Sulphate-Orange Participate

Copper Sulphate-Blue Particpate

Testing for Anions

Add dilute Nitric acid, followed by Silver Nitrate solution

Chloride Compound-White Percipitate

Bromide Compound-Cream Percipitate

Iodide Compound- Yellow Prcipitate