JAMB - Chemistry (2004 - No. 30)
The allotrope of carbon used in the decolourization of sugar is
Graphite
Soot
Charcoal
Lampblack
Açıklama
Charcoal is an amorphous allotrope of carbon, meaning it's a form of carbon that exists in an irregular, non-crystalline structure.
-
Wood charcoal has a porous structure that provides a large surface area for adsorption, allowing it to absorb coloured material from sugar .
-
Animal charcoal is obtained from bones, blood, and horn through destructive distillation, it has good adsorptive power and can decolourize raw sugar when boiled together.
-
Activated carbon plays a multifaceted role in sugar cane refining, removing impurities and colourants from sugar solutions. Therefore, Charcoal is the allotrope of carbon used in the decolourization of sugar.