The group 14 elements are the second group in the p-block of the periodic table. It is also called the carbon group. The members of this group are:
Note: In cold countries, white tin changes to grey tin and results in a decrease in density. This is called tin disease or tin plague.
Note:
SnCl2 . 5H2O is called bitter of tin and is used as a mordant in dyeing.
Q. Give some practical uses of carbon.
Ans. There are many important uses of carbon. Some of them are:
- We use impure carbon in the form of charcoal (from wood) and coke (from coal) in metal smelting.
- Graphite is a common use in pencils. We also use graphite to make brushes in electric motors and in furnace linings.
- Activated charcoal finds its usage in purification and filtration in respirators and kitchen extractor hoods.
- Industrial diamonds are a common tool for cutting rocks and drilling.
The crystalline forms include:
Note:
Lead poisoning is called plumbosolvency which increases in the excess of nitrates, organic acids and ammonium salts.
2) Tetravalency of Carbon:
3) Catenation:
4) Electronegativity:
Solved Example:
Q: Give some practical uses of carbon.
Ans: There are many important uses of carbon. Some of them are:
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1. What are the general physical properties of Group 14 elements? |
2. What are the unique properties of carbon compared to other Group 14 elements? |
3. What are the allotropic forms of carbon and how do they differ from each other? |
4. What are the compounds of silicon and how do they differ from those of carbon? |
5. What is the anomalous behavior of carbon and how does it contribute to its versatility in forming compounds? |
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