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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pb128

Select the correct statement(s) about carbon allotropes.

AEvery carbon in diamond is $s p^{3}$ hybridised and bonded to four carbons.
BGraphite conducts electricity along its layers.
CGraphite is harder than diamond.
D $C X_{60}$ has 20 six-membered and 12 five-membered rings.

Answer: A, B, D

Diamond is tetrahedral

s p^{3}

(A true); graphite has mobile pi electrons in layers (B true); diamond is the hardest, graphite is soft (C false);

C X_{60}

has 20 hexagons and 12 pentagons (D true).

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