Chemically, mullite refractories is A 3Al<sub>2</sub>O<sub>3</sub>.2SiO<sub>2</sub> B Al<sub>2</sub>O<sub>3</sub> C ZrSO<sub>4</sub> D ThO<sub>2</sub> Chemically, mullite refractories is Correct Answer 3Al<sub>2</sub>O<sub>3</sub>.2SiO<sub>2</sub> Bissoy MCQ Team Chemical Engineering Refractory Technology