Which is an allotrope of carbon?
AQuartz
BSulphur rhombic
CDiamond
DPhosphorus white
Answer & Solution
Correct answer: C. Diamond
1. Allotropes are different physical forms of the same element.
2. Carbon has crystalline allotropes such as diamond, graphite and fullerene.
3. Quartz is a form of silica, not carbon.
4. So diamond is an allotrope of carbon.
_Source: NCERT Class 10 Science Ch 4 'Carbon and its Compounds' (byjus.com extract)_
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