53. About zinc oxide eugenol all are true except_______________? September 27, 2025 by Admin A. ZnO is converted to Zn(OH)2 B. Reaction is autocatalytic C. Water is the byproduct of reaction D. Dehydrated ZnO reacts with dehydrated eugenol ✅ The correct answer is option D. Dehydrated ZnO reacts with dehydrated eugenol.