Alkaline hardness is due to the presence of bicarbonate, carbonate and hydroxides of the hardness-producing metal ions.

Related MCQs

• The sodium soap will precipitate all the hardness causing ions into their respective
• Hardness of water is due to the presence of salts of                          
• In ion exchange process, the iron and manganese ions are removed from the water.
• Electrodialysis is based on the fact that the ions present in saline water migrate towards their respective electrodes under the influence of applied                        
• EDTA method for hardness determination is a less accurate and inconvenient procedure.
• Which of the following is not a unit of hardness?
• Hardness of water is conventionally expressed in terms of equivalent amount of
• How many grams of MgCO3 dissolved per litre gives 84 ppm hardness?
• Estimation of hardness can be determined by                  types.
• Total hardness of water can be determined by titrating the fixed volume of water against the standard                        solution.