Water hardness quiz

One of these ions contribute more to water hardness

• Manganesse ions

• Iron ions

• Magnesium ions

• Aluminium ions

Identify the water sample labelled 'A'

• Hard water

• Mineral water

• Soft water

The EBT sensor depicted in this picture comprises of the following chemicals, EXCEPT

• EBT

• CAPS

• PULLULAN

• METHANOL

• BLUE DYE

The name of the titration process used to measure water hardness is ___.

• Titrimetry

• Complexometry

• Redox

• Neutralization

Select as much as possible ions that contribute to water hardness

• Aluminium

• Iron

• Strontium

• Manganese