Q2. Name two crystalline allotropes of carbon.
Q3. Name two amorphous allotropes of carbon.
Q 4.name two substances in which carbon is present in combined state.
Q 5. Write four important uses of graphite.
Answers
Answer:
1.there are two other well-known crystalline allotropes of carbon, lonsdaleite and graphite. These two allotropes both have a hexagonal structure, although lonsdaleite is close packed, as described below, while graphite is not.
2. Diamond and GraphiteDiamond and graphite are two allotropes of carbon — pure forms of the same element that differ in structure.
3. Diamond, graphite and coal are the free forms of carbon. In combined state, carbon occurs in the form of its compounds in solid, liquid and gaseous states.
4. Uses of natural graphite. Natural graphite is mostly used for refractories, batteries, steelmaking, expanded graphite, brake linings, foundry facings and lubricants.
Answer:
2) Diamond ,Graphite
3) Coal,Coke
4) Solid, Liquid,Gaseous states
5) Writing Materials,Lubricants,Batteries,
Explanation:
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