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Forensic Medicine
Black gun powder composition ?
Charcoal 60% + Potassium nitrate 20% + sulphur 20%
Charcoal 25% + Potassium nitrate 70% + sulphur 05%
Charcoal 15%+ Potassium nitrate 75% + sulphur 10%
Charcoal 65% + Potassium nitrate 20% + sulphur 15%
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