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Question
Which of the following is not a crystalline form of carbon?
Which of the following is not a crystalline form of carbon?
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Solution
The correct option is C Coal
The explanation for the correct option
The property of an element due to which it exists in different physical forms which have identical chemical properties but different physical properties are called allotropy. The different physical forms which exist due to allotropy are called allotropes.
Allotropes of Carbon can be divided into crystalline and amorphous allotropes based on their structure.
- Non-crystalline or amorphous allotropic allotropes: The allotropes in which the constituent particles are not arranged in a particular pattern.
- Example: Coal, charcoal etc.
The explanation for the incorrect options
- Crystalline allotropes: The allotropes in which the constituent particles are arranged in a particular pattern. Example: diamond, graphite, fullerene
Therefore, option (c) is correct.
Coal
The explanation for the correct option
The property of an element due to which it exists in different physical forms which have identical chemical properties but different physical properties are called allotropy. The different physical forms which exist due to allotropy are called allotropes.
Allotropes of Carbon can be divided into crystalline and amorphous allotropes based on their structure.
- Non-crystalline or amorphous allotropic allotropes: The allotropes in which the constituent particles are not arranged in a particular pattern.
- Example: Coal, charcoal etc.
The explanation for the incorrect options
- Crystalline allotropes: The allotropes in which the constituent particles are arranged in a particular pattern. Example: diamond, graphite, fullerene
Therefore, option (c) is correct.
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