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Osmic acid boiled with a solution of food substance gave a black precipitate. This ...

Osmic acid boiled with a solution of food substance gave a black precipitate. This indicates the presence of
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Fats and oil
  • B Proteins
  • C Amino acids
  • D Starch
Correct Answer: Option A
Explanation:

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