Pharmacology The Ethyl alcohol (Ethanol) is more effective when mixed with water and used as: A 10 to 20 percent B 20 to 30 per cent C 40 to 50 per cent D 60 to 70 per cent 💡 Explanation The Ethyl alcohol (Ethanol) is more effective when mixed with water and used as: ✓ Correct Answer: D. 60 to 70 per cent