A substance which reacts with gangue to form fusible material is called (a) Flux (b) Catalyst (c) Ore (d) Slag A substance which reacts with gangue to form fusible material is called (a) Flux (b) Catalyst (c) Ore (d) Slag November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,