Carbon Allotropy
Which pair are allotropes of carbon?
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More p-block elements Practice Questions
Carbon monoxide is a highly poisonous gas; on what basis does it exert its toxic effect on the human...
Carbon monoxide is a highly poisonous gas; on what basis does it exert its toxic effect on the human...
Why does the stability of the +5 oxidation state decrease while that of the +3 state increases down ...
Why does the stability of the +5 oxidation state decrease while that of the +3 state increases down ...
Silicones are synthetic polymers with a repeating silicon-oxygen backbone; which property makes them...
Silicones are synthetic polymers with a repeating silicon-oxygen backbone; which property makes them...
Chlorine acts as a bleaching agent for cotton and paper; on what chemical principle does its bleachi...
Chlorine acts as a bleaching agent for cotton and paper; on what chemical principle does its bleachi...
Interhalogen compounds such as ClF_3 are generally more reactive than the individual halogens; what ...
Interhalogen compounds such as ClF_3 are generally more reactive than the individual halogens; what ...
Carbon shows a far greater tendency for catenation than silicon and the heavier members of Group 14;...
Carbon shows a far greater tendency for catenation than silicon and the heavier members of Group 14;...
In the structure of diborane, what unusual type of bonding holds the two boron atoms together throug...
In the structure of diborane, what unusual type of bonding holds the two boron atoms together throug...
Among the hydrogen halides HF, HCl, HBr, and HI, which is the strongest acid in aqueous solution and...
Among the hydrogen halides HF, HCl, HBr, and HI, which is the strongest acid in aqueous solution and...
Using VSEPR theory, what is the molecular shape of xenon tetrafluoride, XeF_4, given that xenon has ...
Using VSEPR theory, what is the molecular shape of xenon tetrafluoride, XeF_4, given that xenon has ...
Why does nitrogen not form pentahalides such as NCl_5 whereas phosphorus readily forms PCl_5 in the ...
Why does nitrogen not form pentahalides such as NCl_5 whereas phosphorus readily forms PCl_5 in the ...
Ozone acts as a powerful oxidising agent and readily decomposes to oxygen; what makes it thermodynam...
Ozone acts as a powerful oxidising agent and readily decomposes to oxygen; what makes it thermodynam...
Which oxide of nitrogen is a neutral oxide that is also used as an anaesthetic commonly known as lau...
Which oxide of nitrogen is a neutral oxide that is also used as an anaesthetic commonly known as lau...
About This Question
- Subject
- chemistry
- Chapter
- p-block elements
- Topic
- carbon allotropy
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Graphite and Diamond
- Allotropy: The existence of an element in two or more different forms in the same physical state, which differ in their internal structure and properties.
- Carbon Allotropes:
- Graphite: Hexagonal layers, sp2 hybridized, conducts electricity due to delocalized electrons.
- Diamond: 3D tetrahedral network, sp3 hybridized, hardest natural substance, insulator.
- Fullerenes: Spherical cages like C60.
- Exclusion: CO2 and CH4 are compounds of carbon, not allotropes (which must be pure carbon). Carbon black is an amorphous form of carbon.
This easy difficulty chemistry question is from the chapter p-block elements, covering the topic of carbon allotropy. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse p-block elements questions on RankGuru.