Interview question based on skill :
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Total Questions: 5
1. Which source of water is free from hardness and surface impurities?
Correct Answer is : Rain water
2. Water from reservoirs comes under the category of
Correct Answer is : Surface water
3. Which of the following indicator is pink in basic medium?
Correct Answer is : Phenolphthalein
4. What are the disadvantage of using high alkaline water?
Correct Answer is : It may lead to caustic embrittlement
5. The alkalinity due to carbonate ion is 2P when
Correct Answer is : P = M/2
