Single Answer MCQ
Q-00019162
What is the primary reason that hard water limits the effectiveness of soap?
1
It contains excess oil.
2
It reduces the pH.
3
It has high mineral content.
4
It is too cold.
Answer and Solution
Answer
C. It has high mineral content.
Solution:
Hard water contains high levels of minerals such as calcium and magnesium, which react with soap to form insoluble compounds called scum, reducing its cleaning effectiveness.
Watch Video Solution