Q4 of 33 Page 223

Buckminster fullerene is the allotropic form of _______ .(Nitrogen / Carbon / Sulphur)

Carbon

Explanation: Fullerene is an another types of carbon allotropes.


i. The first discovered fullerene contains 60 carbon atoms in the shape of a football. (C-60).


ii. It is named as Buck Minster Fullerene.



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2

Assertion: Diamond is the hardest crystalline form of carbon.

Reason: Carbon atoms in diamond are tetrahedral in nature (Verify the suitability of reason to the given Assertion mentioned above)


 3

Assertion: Due to catenation a large number of carbon compounds are formed.

Reason: Carbon compounds show the property of allotropy.


Does the reason hold good for the given Assertion?


 5

Even though it is a non-metal, graphite conducts electricity. It is due to the presence of ___________ . (free electrons / bonded electrons)

 6

The formula of methane is CH4 and its succeeding member ethane is expressed as

C2H6. The common difference of succession between them is _______ .(CH2 / C2 H2)