OXIDES OF SULPHUR
Sulphur forms a number of oxides, these are
OXIDE
FORMULA
CHARECTERISTIC PROPERTY
Sulphur suboxide
S2O
Colourless gas
Sulphur monoxide
SO
Colourless gas
Sulphur sesquioxide
S2O3
Green crystalline solid
Sulphur dioxide
SO2
Colourless gas
Sulphur trioxide
SO3
Volatile […]
OXYGEN
Oxygen is a colourless, odourless and a gaseous element belonging to the VIth group of the periodic table. In the natural state it occurs in the atmosphere, about 21% by volume. It is an essential component of all living matter. It is the most abundant element and forms about one-half of the earth’s crust ( […]
OXIDES OF PHOSPHOROUS
PHOSPHOROUS TRIOXIDE
Phosphorous (III) oxide is a white waxy solid having a garlic odour. Its molecular formula is P4O6, since it exists as a dimer. It is charecterised by:
Relative density 2.13
Melting point 23.8OC
Boiling point 173.8OC
It is soluble in ether, chloroform and benzene.
It is a toxic gas.
PREPARATION
It is obtained, when phosphorous is burned […]
THE CONCEPT OF ATOMS AND MOLECULESTHE LAWS OF CHEMICAL COMBINATION
What is chemical combination?
Chemical combination is defined as the combination of two or more atoms or molecules to give a chemical compound. It may also be stated simply as ‘the combination of elements to […]
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