Question

Soap form lathers in hard water, but a detergent does not.

• A. True
• B. False

Answer 1

The correct option is B False

Soap is less effective in hard water. Since it reacts to form a calcium or magnesium salt of the organic acid. In the soap and forms a grayish soap scum with no lather.

Detergents on the other hand, lather in both hard and soft water.

So, the above statement is false.