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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Portland cement is manufactured by using (a) Lime stone, clay and sand (b) Lime stone, gypsum and sand (c) Lime stone, gypsum and alumina

Portland cement is manufactured by using (a) Lime stone, clay and sand (b) Lime stone, gypsum and sand (c) Lime stone, gypsum and alumina

clay and sand (b) Lime stone gypsum and alumina gypsum and sand (c) Lime stone Portland cement is manufactured by using (a) Lime stone