Which of the following adsorbent is used in the refining of sugar?
Correct answer: D. Bone charcoal
- A. Activated clay
- B. Wood charcoal
- C. Silica gel
- D. Bone charcoal
Explanation
Bone charcoal, also called bone black, adsorbs colouring matter and impurities from raw sugar syrup, giving refined sugar its lighter colour. Silica gel is mainly used for drying, not routine sugar decolourisation.
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