











 
 
 
COMENTÁRIO
DA PROVA – QUÍMICA
 
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 










 

 


 


 

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 


COMENTÁRIO - ALOTROPIA




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a) (Falso) Grafite,
diamante, grafeno e fulereno são formas alotrópicas do carbono.



b) (Falso) O grafeno corresponde a uma das camadas de grafite. É considerado um excelente

condutor.

c) (Verdadeiro) O carbono presente no grafeno apresenta hibridação sp2.
d) (Falso) As formas alotrópicas grafite e grafeno apresentam condutividade elétrica.
 
 
 
 
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 C
Item:
