Everyday Uses Of Indicators

Question 1

Testing pool water

Answer 1

Maintaining water quality and hygiene
Sodium Hypochlorite added to kill microbes which raises basicity and can irritate swimmers eye and throats. Too acidic and metal fittings can be damaged.

Question 2

Soil Testing

Answer 2

Yield of crops in agriculture. Economic benefits and increased rate of production. Some plants grow best in acidic soils; others need slightly alkaline conditions.

Question 3

Effluent testing

Answer 3

Industry technicians and government authorities use indicators to monitor the pH of wastewater and natural waterways. (Pollution)