Photo AI
The treatment of water for drinking may involve the following procedures: flocculation chlorination pH adjustment (i) What is flocculation? (ii) Why is drinking water chlorinated? Give one disadvantage of adding too much chlorine during drinking water treatment - Leaving Cert Chemistry - Question c - 2015
Question c
The treatment of water for drinking may involve the following procedures: flocculation chlorination pH adjustment (i) What is flocculation? (ii) Why is drinking w... show full transcript
Worked Solution & Example Answer:The treatment of water for drinking may involve the following procedures: flocculation chlorination pH adjustment (i) What is flocculation? (ii) Why is drinking water chlorinated? Give one disadvantage of adding too much chlorine during drinking water treatment - Leaving Cert Chemistry - Question c - 2015
Step 1
Step 2
Why is drinking water chlorinated? Give one disadvantage of adding too much chlorine during drinking water treatment.
Answer
Drinking water is chlorinated to kill microorganisms (bacteria) and to disinfect or purify the water. One disadvantage of adding too much chlorine is that it can result in an unpleasant taste or smell, and can be toxic or harmful to health.
Step 3
State one problem that could arise if the pH of drinking water were too low.
Answer
One problem that could arise if the pH of drinking water were too low is pipe corrosion or tooth decay. In such cases, a base or named base, such as sodium bicarbonate, is added to the water to increase the pH.