Question

The given sample of lathers easily with water, it is :

• A. hard water.
• B. soft water.
• C. permanent hard water.
• D. temporary hard water.

Answer 1

Answer: (B)

soft water.

Soft water is surface water that contains low concentrations of ions and in particular is low in ions of calcium and magnesium. Because soft water has few calcium ions, there is no inhibition of the action of soaps and no soap scum is formed in normal washing. It lathers easily with water. Similarly, soft water produces no calcium deposits in water heating systems.