GKFix MCQ Question

What is the main difference between temporary and permanent hardness of water?

• A. Temporary hardness is caused by sulfates, while permanent hardness is caused by bicarbonates
• B. Temporary hardness is caused by chlorides, while permanent hardness is caused by bicarbonates
• C. Temporary hardness cannot be removed, while permanent hardness can be removed
• D. Temporary hardness can be removed by boiling, while permanent hardness cannot