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  • Microbes - 1
  • Which one of these is a chemical preservative?
Multiple choice

Which one of these is a chemical preservative?

  1. NPK

  2. Penicillin

  3. Alcohol

  4. Nitrate

  5. Sodium metabisulphite

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Sodium metabisulphite is a chemical preservative.

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