Calcium sulphate present in water causes corrosion.

Related MCQs

• The presence of calcium and magnesium bi-carbonates in water causes hardness in the water.
• The presence of calcium and magnesium chloride in water causes
• Copper sulphate is the most common chemical used for controlling
• Aluminium sulphate may be used for coagulation.
• The temporary hardness due to calcium bicarbonates can be removed by
• The presence of hydrogen sulphide in water causes
• The presence of bacteria in water causes
• The presence of carbon dioxide in water causes acidity.
• The corrosion in pipe is due to
• When manganese is present in water, it reduces the degree of hardness.