Chemistry (2110001-GTU) Assignment 3:

1. What are the common sources of water? Is every source of water potable? Why?
2. What are the sources of impurities in water?
3. Explain the terms: Hard water, Soft water and degree of hardness.
4. Why Scale and Sludge formation take place in boiler? What are the disadvantages of it?
5. How will you prevent  Scale and Sludge formation in boiler?
6. Write a note on Caustic embrittlements.
7. Describe the properties of drinking water.
8. What is Break-point chlorination? Where and why it is used?
9. Explain the term ‘Brackish water’? How will you carry out desalination of brackish water?