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What are the general trends in the chemistry of elements of groups 15, 16, 17, and 18?
What are the general trends in the chemistry of elements of groups 15, 16, 17, and 18?
The general trends include diversity in chemistry, ability to react with elements of s–, d– and f–blocks, and specific preparation, properties, and uses of each element.
Describe the preparation, properties, and uses of dioxygen and ozone.
Describe the preparation, properties, and uses of dioxygen and ozone.
Dioxygen is prepared from the air and has vital uses in respiration and combustion. Ozone is prepared by passing electric discharge through oxygen and is used for water purification and in the atmosphere.
What are the allotropic forms of sulphur and the chemistry of its important compounds?
What are the allotropic forms of sulphur and the chemistry of its important compounds?
The allotropic forms include rhombic and monoclinic sulfur. Important compounds include sulfuric acid, sulfurous acid, and thiosulfates.
Describe the preparation, properties, and uses of chlorine and hydrochloric acid.
Describe the preparation, properties, and uses of chlorine and hydrochloric acid.
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What are the structures of oxoacids of halogens and the uses of noble gases?
What are the structures of oxoacids of halogens and the uses of noble gases?
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