Students who are having troubles with their Class 8 ICSE Chemistry Syllabus can use the help and study materials that Extramarks provides. The ICSE Chemistry Class 8 study materials that Extramarks makes is very detailed. In Class 8 ICSE Chemistry Syllabus the chapter of carbon and it's compounds are very hard. Two or more elements make up a compound. There are two compound types — Organic Compound and Inorganic Compounds. Organic compounds are the carbon and hydrogen compounds.Covalent Bond The bond formed between two atoms by sharing a pair of electrons is known as the Covalent Bond. Carbon is a bond that is covalent. Carbon exists as a free state and a combined state in two forms. In graphite, diamond and fullerene, carbon freeform is found. Carbon exists as carbon dioxide, glucose, sugar, etc. in the combined state.Carbon allotropes Allotropes are called various forms of an element with the same chemical properties but different physical properties. There are three carbon diamond, graphite, and fullerene allotropes.
Diamond Diamond with strong carbon-carbon covalent bonds exits as a three-dimensional network. With a high melting point, diamond is hard in nature. It shines in the presence of light and is a bad electricity conductor. Diamond's most common use is to make jewellery. It is also used in tools for cutting and drilling.
Graphite is made of the weak force of the van der wall. To form hexagonal rings, each carbon atom is bonded with three other carbon atoms. It serves as a good heat and electricity conductor. As well as being used in lead pencils, it is used as a dry lubricant for machine parts.
Fullerene In the form of a sphere, it is a hollow cage. Its composition is similar to that of fullerene. But sometimes there are also pentagonal or heptagonal rings along with hexagonal rings.
Screen reader support enabled.
No comments:
Post a Comment