The ADA specification No 1 for composition of amalgam alloy recommends______________? September 27, 2025 by Admin A. 65% silver, 32% tin and 3% copper B. 49% silver, 32% tin and 19% cooper C. 65% silver, 29% tin and 5-6% copper D. None of the above ✅ The correct answer is option C. 65% silver, 29% tin and 5-6% copper.