BPSC (Bihar) Exam > BPSC (Bihar) Questions > Which of the following substitutes has amorph...
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Which of the following substitutes has amorphous allotropes of carbon?
- a)Coke, Solid carbon, Lamp Black, Charcoal
- b)Liquid carbon, Coal, Lamp Black, Charcoal
- c)Coke, Coal, Lamp Black, Charcoal
- d)Coke, Coal Gas, Lamp Black, Gasoline
- e)None of the above/More than one of the above
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following substitutes has amorphous allotropes of carbon?...
Understanding Amorphous Allotropes of Carbon
Amorphous allotropes of carbon are forms of carbon that do not have a well-defined crystalline structure. They are typically less organized than crystalline allotropes like diamond or graphite. Common examples include charcoal, lamp black, and coke.
Analysis of Options
- Option a) Coke, Solid carbon, Lamp Black, Charcoal
- Coke: Mostly crystalline; hence not amorphous.
- Solid carbon: Generally refers to crystalline forms.
- Lamp Black: Yes, it is an amorphous form.
- Charcoal: Yes, it is also amorphous.
- Conclusion: Contains some amorphous forms, but not predominantly.
- Option b) Liquid carbon, Coal, Lamp Black, Charcoal
- Liquid carbon: Not a conventional form; does not apply.
- Coal: Generally contains crystalline and amorphous forms.
- Lamp Black: Amorphous.
- Charcoal: Amorphous.
- Conclusion: Contains amorphous forms but lacks clarity.
- Option c) Coke, Coal, Lamp Black, Charcoal
- Coke: Mostly crystalline.
- Coal: Contains both forms.
- Lamp Black: Amorphous.
- Charcoal: Amorphous.
- Conclusion: Contains primarily amorphous forms (Lamp Black and Charcoal).
- Option d) Coke, Coal Gas, Lamp Black, Gasoline
- Coke: Mostly crystalline.
- Coal Gas: Gaseous; not applicable.
- Lamp Black: Amorphous.
- Gasoline: Not carbon in solid form.
- Conclusion: Does not primarily consist of amorphous forms.
- Option e) None of the above/More than one of the above
- Conclusion: Not applicable as option c is valid.
Final Conclusion
The correct answer is Option c, as it includes Lamp Black and Charcoal, both of which are recognized as amorphous allotropes of carbon, alongside coal which contains both crystalline and amorphous forms.
Amorphous allotropes of carbon are forms of carbon that do not have a well-defined crystalline structure. They are typically less organized than crystalline allotropes like diamond or graphite. Common examples include charcoal, lamp black, and coke.
Analysis of Options
- Option a) Coke, Solid carbon, Lamp Black, Charcoal
- Coke: Mostly crystalline; hence not amorphous.
- Solid carbon: Generally refers to crystalline forms.
- Lamp Black: Yes, it is an amorphous form.
- Charcoal: Yes, it is also amorphous.
- Conclusion: Contains some amorphous forms, but not predominantly.
- Option b) Liquid carbon, Coal, Lamp Black, Charcoal
- Liquid carbon: Not a conventional form; does not apply.
- Coal: Generally contains crystalline and amorphous forms.
- Lamp Black: Amorphous.
- Charcoal: Amorphous.
- Conclusion: Contains amorphous forms but lacks clarity.
- Option c) Coke, Coal, Lamp Black, Charcoal
- Coke: Mostly crystalline.
- Coal: Contains both forms.
- Lamp Black: Amorphous.
- Charcoal: Amorphous.
- Conclusion: Contains primarily amorphous forms (Lamp Black and Charcoal).
- Option d) Coke, Coal Gas, Lamp Black, Gasoline
- Coke: Mostly crystalline.
- Coal Gas: Gaseous; not applicable.
- Lamp Black: Amorphous.
- Gasoline: Not carbon in solid form.
- Conclusion: Does not primarily consist of amorphous forms.
- Option e) None of the above/More than one of the above
- Conclusion: Not applicable as option c is valid.
Final Conclusion
The correct answer is Option c, as it includes Lamp Black and Charcoal, both of which are recognized as amorphous allotropes of carbon, alongside coal which contains both crystalline and amorphous forms.
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Community Answer
Which of the following substitutes has amorphous allotropes of carbon?...
Coke, Coal, Lamp Black and Charcoal are all amorphous allotropes of Carbon.
IMPORTANT FACTS
ALLOTROPES –
IMPORTANT FACTS
ALLOTROPES –
- The Allotropes are different forms of an element having different physical properties but the same chemical properties.
ALLOTROPES OF CARBON
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Which of the following substitutes has amorphous allotropes of carbon?a)Coke, Solid carbon, Lamp Black, Charcoalb)Liquid carbon, Coal, Lamp Black, Charcoalc)Coke, Coal, Lamp Black, Charcoald)Coke, Coal Gas, Lamp Black, Gasolinee)None of the above/More than one of the aboveCorrect answer is option 'C'. Can you explain this answer?
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