Permanent - hardness of water may be removed by addition of –

Related MCQs

• Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
• Which method will be employed to test the hardness of water?
• The two metal ions that cause hardness to water are:
• Maximum permissible concentration of total hardness in drinking water is –
• Hardness of the water is commonly measured in terms of -
• If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by –
• If water smells bad, then that odour can be removed by adding -
• If water smells bad, then that odour can be removed by adding –
•              gives hardness to stainless steel.
•            gives hardness to stainless steel.