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Insoluble Residue mainly comes from which compound?(a) Lime(b) Soda(c) Silica(d) AluminaThe question was asked in an interview.Enquiry is from Chemical Composition Test in chapter Types of Cement and Testing of Cement of Concrete Technology

Answer»

The correct choice is (c) Silica

To ELABORATE: INSOLUBLE Residue is that fraction of cement which is insoluble in HCL. It comes mainly from the silica which has not reacted to form compounds during the burning process in the KILN.



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