Effect of Heat on Salts (2)

Observation for test for oxygen gas, O

The glowing wooden splinter ignites again when inserted into in a test tube

Observation for test of hydrogen gas, H2

A 'pop' sound is produced when wooden splinter lights up

Observation for test of carbon dioxide gas, CO2

Lime water becomes cloudy

Observation for test of ammonia gas, NH3 (1)

The red color of the moist litmus paper changes become blue

Observation for test of chlorine gas, Cl2 (1)

The blue color of the damp litmus paper turns into red and then white

Observation for test of chlorine gas, Cl2 (2)

A greenish-yellow gas with a strong odor is released

Observation for test of ammonia gas, NH3

A strong smell is produced

Observation for test of hydrogen chloride gas, HCl

White fumes are formed when the glass rod is brought close to test tube mouth

Observation for test of sulphur dioxide gas, SO2 (1)

The purple color of acidic potassium manganate(VII) solution

Observation for test of sulphur dioxide gas, SO2 (2)

KMnO4 is decolorized