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A : Fullerene is the purest allotrope of...

A : Fullerene is the purest allotrope of carbon .
R : They have smooth structure without danging bonds .

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion , then mark (1)

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion , then mark (2)

C

If Assertion is true statement but Reason is false , then mark (3)

D

If both Assertion and Reason are false statements , then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that "Fullerene is the purest allotrope of carbon." To analyze this, we need to identify what fullerene is and its classification among carbon allotropes. 2. **Identifying Carbon Allotropes**: Carbon has several allotropes, the most notable being: - Graphite - Diamond - Fullerenes (including C60, also known as buckyballs) 3. **Defining Fullerene**: Fullerenes are a form of carbon that consists of molecules made entirely of carbon, in the form of a hollow sphere, ellipsoid, or tube. The most famous fullerene is C60, which resembles a soccer ball. 4. **Evaluating the Purity of Fullerene**: The assertion claims that fullerene is the purest allotrope of carbon. This can be justified by the fact that fullerenes, particularly C60, have a well-defined structure and do not have dangling bonds, which are bonds that are not satisfied by other atoms. 5. **Understanding the Reason**: The reason provided states that "They have a smooth structure without dangling bonds." This means that in the structure of fullerenes, all carbon atoms are bonded in a way that there are no unbonded or reactive sites, making them stable and less reactive compared to other allotropes. 6. **Conclusion**: Both the assertion and the reason are correct. Fullerene (C60) is indeed considered one of the purest forms of carbon due to its stable structure without dangling bonds. ### Final Answer: Both the assertion and the reason are correct, and the reason correctly explains the assertion.
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