Chemistry (2110001-GTU) Assignment-9

1. Define the terms : Refractory, Abrasives and Insulators.
2. Write the characteristics of refractories.
3. How are refractories classified?
4. Write short notes on porosity and permeability of a refractory
5. Prepare a note on classification, properties and uses of abrasives.
6. Explain classification of Insulators
7. Write properties and uses of Insulators.